Proto:Pokémon Gold and Silver/Maps

This is a sub-page of Proto:Pokémon Gold and Silver.

Region Map

The town map of the region seen in the prototype's PokéGear. Only visible in Debug Mode.

The town map without the trainer or flying Pokémon obstructing it.

A full-size map of the overworld of the prototype region. Click to view.

The region found in the prototype is incredibly different to the final Johto region. It seems to be based on the entirety of Japan, with Kanto having been compressed into a single map, found in the area of the real life Kanto region. Most of the region is mapped out, with seemingly only a couple of routes from the map missing from the prototype. However, some of these maps are closed off and do not connect anywhere as well, if accessed through debug mode.

Most of the maps are missing scripts for NPCs and most trainers are missing scripts for trainer battles, with only the demo area, Silent Hills, having working trainers. Also, the collision data for most maps doesn't work properly and so the player is able to walk through most tiles if these maps are accessed. Due to this, much of the wild grass also does not function as the collision data means it cannot be walked upon, but every area does contain encounter data and if loaded in the tileset used in the demo area, these grass patches can function.

The Town Map can be accessed by using the PokéGear option in Debug Mode.

Comparing the full overworld with the Town Map shows there are a few discrepancies between the two:

• Although the Town Map shows routes between West and High-Tech and between High-Tech and Font, maps for these routes do not actually exist in the game's overworld. Their depiction on the map suggests they would have been at least partially water-based.
  • The overworld maps for West and High-Tech include a western and southern exit respectively, which does suggest a connecting route between the two - however, this still differs from the Town Map's layout, which instead shows the route connecting from the West map's north side to the High-Tech map's east side.
  • The overworld maps for High-Tech and Font include a northern and southern exit respectively - unlike above, these do match up with the intended route as shown on the World Map.
• The route north from West to Birdon exists only on the overworld, and is not marked on the Town Map. Combined with the discrepancy noted above re: the location of the intended route from West to High-Tech, it's possible that this area of the overworld was undergoing redevelopment at the time the demo was compiled, and that the Town Map reflects an earlier plan for the overworld's layout.
• The overworld maps for the route from Silent Hills to Prince and Mt. Fuji do not appear to connect properly, and appear to have possibly been blocked off for the purposes of the demo version. Interestingly, the map matching Mt. Fuji's location on the Town Map strongly resembles an empty version of the Prince map, missing both the waterfall and all the town's buildings. Exactly what this map was intended for, or how the maps on this route were intended to link together, is currently unknown.
• Although the eastern side of Silent Hills is blocked off by a small rock structure, both the Town Map and overworld layout suggest it was supposed to directly connect to the route leading east to Kanto. It's possible this may have been blocked off specifically for the Space World demo, to confine the player to the areas specifically used for the demo itself.

Real-world Correspondences

The prototype overworld is a direct reflection of real life Japan. These are the most likely mappings of locations in the game to real locations.

Name	Translation	Real Location	Rationale	Relation to Final
サイレント	Silent	Shizuoka	The kanji for 静岡 Shizuoka literally translate to silent and hill, the name of this ingame location.	Retooled without the Pokemon Center as New Bark Town. An intermediate map of this town, but with some differences to the demo version still exists in the final ROM.
オールド	Old	Kyoto	Kyoto was for centuries the capital of Japan, and holds a great deal of its history.	This concept was split across multiple "historic" towns, Violet City and Ecruteak City which both feature historical wooden towers.
ウエスト	West	Osaka	Osaka is a major city whose port faces west.	The location was reworked into Goldenrod City, which retains the department store and radio tower of West.
ハイテク	High-tech	Kochi	Kochi is a city on the island of Shikoku whose name means high knowledge (高知).	No direct match; may have been an influence for Olivine and Cianwood City.
フォント	Font	Izumo	Initially this city was identified with Hiroshima; however, the nearby historical city of Izumo strongly resembles the Japanese word 泉 izumi, meaning a spring or fountain. Izumo is also notable for its tombs, which may be the inspiration for the Ruins of Alph.	The Ruins of Alph were moved to their own, non-town zone.
バードン	Birdon	Tottori	Tottori contains tori, which means bird in Japanese. Birdon is a desert town and Tottori is known for its sand dunes.	The Slowpoke Well concept was reused for Azalea Town, but the desert town was not.
ニュータイプ	Newtype	Niigata	新潟 Niigata is literally "New Lagoon", but -gata is also a possible reading of 型, meaning type. Niigata has a famous bridge, and Newtype is a city of bridges.	Has a functional relation to Mahogany Town. May have been the inspiration for the Lake of Rage, whose early version was a town with a lake in the middle.
シュガー	Sugar	Sado	Sado is an island off the coast of Niigata, in the same relation as Sugar to Newtype.	No clear correspondence but has a functional relation to the Lake of Rage, the body of water north of Mahogany Town. The Lake of Rage is a flyable destination in final for no clear reason; Sugar is a town.
ブルーフォレスト	Blue Forest	Aomori	The kanji for 青森 Aomori literally translate to blue and forest. Blue Forest is at the very tip of the main island.	a snow town; see "North"
スタンド	Stand	Sendai	Sendai is a major city between Tokyo and Aomori.	Contains a zoo like Fuchsia City, which may have been deemed redundant when Fuchsia was restored (initially with intentions to include Safari Zone, which ultimately was cut).
カントー	Kanto	Tokyo	Unlike the leafy portrayal of Generation I, the Tokyo-Yokohama conurbation occupies most of the real-world Kanto region.	"Kanto" in the prototype is shrunk down to one map and clearly not quite finished either. It ended up being replaced with most of the original Kanto from Generation I.
サウス	South	Kyushu	Kyushu in southern Japan is known for its volcanoes.	The tropical island idea was scrapped. May have been an influence for Cinnabar Island to be destroyed in the final. Generation III would use Kyushu as the basis for Hoenn.
ノース	North	Hokkaido	Hokkaido is the northernmost island.	The snowy overworld concept was scrapped, but an unusual ice cave is found in final product. Generation IV would use Hokkaido as the basis for Sinnoh.
プりンス	Prince	Fuji	The current kanji for 富士 Fuji mean wealth and man of status, which matches the definition of a prince. The city of Fuji is northeast of Shizuoka and below Mt. Fuji. In-game, Prince is located directly north of Silent Hill and is similarly located right below Mt. Fuji.	The Pokemon League is located at Indigo Plateau, adjacent to Mt. Silver which is Mt. Fuji's in-game counterpart.
フジヤマ	Mt. Fuji	Mt. Fuji	The real-world basis for this map is obvious, as it's literally labelled Mt. Fuji.	Mt. Fuji was ultimately retooled as Mt. Silver.

City Comparisons

Silent Hills/New Bark Town

Space World '97	Early	Final

An earlier map of New Bark Town is present in the final game, which resembles that of Silent Hills as found in the demo.

Pallet Town

Generation I	Space World '97	Final

The demo's representation of the Kanto region has been heavily scaled down into a single large map, with most towns and cities represented by only one or two buildings. The area of the map representing Pallet Town is the only one which retains the town's full layout from the Generation I games, albeit slightly compressed in size compared to the original. For ease of comparison, only the relevant section of the demo's map is shown here.

There are many small differences between the demo map's Pallet Town compared to both the Generation I map and the final game – the signs are placed on opposite sides of the houses, an extra row of fencing has been added to the south, trees are present behind the fencing to the north (which is also the case in the later remakes, FireRed and LeafGreen). The roofs of the buildings have some noticeable differences in detailing and shading, especially Professor Oak's laboratory which has its roof split into three separate panels. Although the demo's laboratory retains the sloped roof of the Generation I games, the laboratory was given a flat roof in the final game.

One difference not immediately apparent from looking at the map itself is that Red and Blue's houses appear to have swapped places in the demo. In Generation I and the final game, Red's house is to the west and Blue's is to the east; however, the demo's map appears to link the westmost house to the interior for Blue's house, and the eastmost house to the interiors for Red's house. Unfortunately, without the intended events and scripts for the area, it's impossible to know whether this was an error on the development team's part or an intentional change.

Interior Comparisons

While most of the interiors are completely different from the final game, some of them bear similarities to either the final version or their equivalents in the Generation I Pokémon games.

Global Maps

Pokémon Center

1F

Generation I	Space World '97	Early	Final

The Pokémon Center's lower floor is larger than even the Generation I version, though its overall layout and aesthetics are already more similar to the final version of the map. The demo's version features no chairs for NPCs to sit on, a second healing machine to the west of the first, and a small partition separating the PC from the rest of the room. The monitor connected to the healing machine has a slightly different design, sporting a squared-off top in the demo rather than the rounded top seen in the final. The demo's flooring pattern is more complex, alternating between blank diamonds and diamonds containing a square – the final version simplifies this to just the blank diamonds. None of the counters or walls cast shadows in the demo.

Interestingly, an unused early version of the Pokémon Center's map also exists in the final game. This version is almost identical to the demo's, save for the removal of the partition wall to the west of the PC and the staircase leading up to the Cable Club.

2F - Cable Club

Space World '97	Early	Final

The Cable Club is much closer to the final product, though it retains the same aesthetic differences as the lower floor. The PC to the left is standalone in the demo, and was moved and integrated into a new section of the counter in the final version. The demo's Trade Center and Colosseum signs are free-standing and placed to the west of each room's attendant – in the final map, the signs have been redesigned and moved to the wall behind each counter, with a short new section of counter replacing their original positions. The pillar between the Trade Center and Colosseum counters is blank in the demo - in the final, an extra sign is positioned here. While the southern portion of the room is completely empty in the demo, the final version adds two rows of seating to fill the space. Finally, the Time Capsule has a different design in the demo, with more glass areas and less visible machinery than the final version.

Interestingly, an unused early version of the Cable Club map exists in the final game, featuring radical differences from both the demo and the final game. This map appears to have a ground floor entrance, suggesting the Cable Club was split off into a separate building at one point in development. It is much more compact than either used layout, featuring only a single counter with the Time Capsule hidden behind it. The final version seems to have scrapped this entirely, instead building its map off the version seen in the earlier demo.

Trade Center

Generation I	Space World '97	Final

The overall design of the room more closely resembles the Generation I games than the final version. The table has been redrawn but retains a near-identical design, and the accompanying chairs still use their Generation I graphics. The flooring has also been redrawn – the dark floor tiles are now a solid colour rather than dithered, the dark and light tiles have swapped places, and the broken areas of the pattern towards the north of the room have been cleaned up. The large pattern in the center of the floor more closely resembles the final game – unlike in Generation I the same hexagonal-shaped seen in the Colosseum is used, and an icon depicting two linked Game Boys has been added to the north of the table. The north wall in the demo resembles neither the earlier games nor the final, using a design which gives the impression of a row of windows.

Colosseum

Generation I	Space World '97	Final

The Colosseum exhibits most of the same aesthetic differences as the Trade Center, though unlike the Trade Center's table the Colosseum's machines still use their Generation I graphics. The only additional difference of note is that – unlike the Generation I games or the final version – the demo's version of the room displays a "VS." symbol to the north of the table in the same spot as the Trade Center's icon of two linked Game Boys. While this would have maintained greater consistency between the two rooms, the icon becomes difficult to read when viewed with the Super Game Boy palette assigned to this room. The final game's version simply drops the icon entirely.

Time Capsule

Generation I Pokemon Center	Space World '97	Final (unused tiles, mockup)	Final

The demo boasts a unique interior for the Pokémon Center's Time Capsule, based on the Generation I version of the Pokémon Center interior. Compared to the original, the map is slightly larger but a lot emptier, lacking the entrance mat, pot plants and seating present in the original. The demo's healing machines use the updated designs seen in the demo and the final game, as opposed to the Generation I design. The floor pattern looks the same as the Generation I games, though the pattern's horizontal position is shifted by 8 pixels compared to the original.

In the final game, the Time Capsule interior is the same as the normal Trade Center. However, the tiles used to construct the map still exist within the final game's Pokémon Center tileset, so it's possible to mock up how the room may have looked had it survived into the final version.

Poké Mart

Generation I	Space World '97 (correct width)	Space World '97 (incorrect width)	Final

The Poké Mart looks quite different in this build, with elements such as the freezer cabinets and shelving more closely resembling the Generation I games' design, though they have almost all been redrawn. The flooring pattern differs from both the Generation I games and the final version, instead sporting a checkerboard pattern with some simple detailing. As with the Pokémon Center's lower floor, the demo's Poké Mart map is larger than either the Generation I games or the final version, though the overall layout does resemble a larger-scale interpretation of the layout seen in the final version.

Some of the Poké Mart maps in this build have too small a width defined, resulting in the map data displaying incorrectly (ex. in Old and High-Tech), while others have the correct width defined and display properly (ex. in Font and Birdon), which suggests the map may have been recently redesigned at the time this demo was built. Interestingly, the incorrect width appears to match the width of the final game's Poké Mart map.

Silent Hills

As with its exterior, some of the interiors in Silent Hills closely resemble those found in the final game's New Bark Town.

Player's House

1F

Space World '97	Final

The ground floor of the player's house is identical to the version found in the final game's New Bark Town.

2F

Space World '97	Early	Final

The upper floor of the player's house has many differences compared to the final version. The demo's map is larger, matching the size of the lower floor. There are multiple beds positioned to the north of the room – the single bed present in the final version is positioned in the south-west corner instead. Multiple bookshelves line the top wall, with a PC and radio between them and a TV to the east. All but one of the shelves have been removed in the final version, and the PC, Radio and TV have been rearranged and grouped together. The Nintendo 64 in front of the TV is also removed in the final - this instead became an optional feature using the room decoration system present in the final game, and could also be swapped for a number of other Nintendo consoles. The final version also adds a Town Map and a table, neither of which are present in the demo - these added features also make use of the final game's decoration system, allowing players to place Pokémon dolls on the table and to swap the Town Map for a variety of Pokémon posters.

An unused early version of the map also exists in the final game, showing an interim state between the demo and final versions. Though the early version is largely similar to the final, as with the demo's version it lacks the Town Map on the north wall. The bookshelves and radio also use tile arrangements more similar to those from the demo than the ones seen in the final. The table has been added, but it's positioned along the north wall rather than in the southeast corner of the room, meaning the shelves and other items to the north are positioned differently to accommmodate it.

House

Space World '97	Final

The solitary NPC house in Silent Hill closely resembles one of the houses from the final New Bark Town. The demo's map is slightly larger, and includes a kitchen area in the additional space to the east, mirroring the player's house. The final version removes the kitchen area and the space it occupied, and replaces the now-redundant partition wall with a couple of bookshelves instead. The size and shape of the window on the north wall also changes between the two versions, with a large square window present in the demo and a small rectangular one present in the final. Finally, in the demo version the entrance mat is centered horizontally, while the final map moves it slightly off-center to the west.

Silent Hills/New Bark Town Laboratory

Generation I	Space World '97	Final

Silent Hills' Laboratory is much larger than the final game's New Bark Town laboratory. Although the entrance is similar in design to Generation I's Pallet Town laboratory, the map is much more expansive. The starter Pokémon selection area is split off into a separate back room area, which is accessed through a door on the north wall of the map. The demo maps use a diagonal brick-patterned floor, as opposed to the floorboards seen in the previous Generation, and feature completely redrawn tables and bookshelves.

Interestingly, the final version's equivalent more closely resembles the Pallet Town laboratory from the Generation I games, featuring an almost identical layout and even reverting to the Generation I graphics for most elements. The only major differences between the two are the addition of a trash can to the right of the starter Pokémon table, the addition of a Generation II styled healing machine in the north-west corner, and the two wall scrolls being swapped for one closed window and one open window – the latter to aid the final game's narrative, as it allows the player's rival to have logically stolen a starter Pokémon without having to walk past the laboratory's occupants.

Kanto

Red's House

As noted in the City Comparisons section, what appear to be the interiors for Red's house are linked to the eastmost building in Pallet Town, which is Blue's House in Generation I and the final game. Without the events and scripts for the area there's no way of knowing if this was an error or an intentional change. For simplicity's sake, the tables below compare these maps with Red's house from Generation I and the final game.

1F

Generation I	Space World '97	Final

The ground floor of Red's house is largely the same as the final version, even housing the same NPC used as Red's mother placed in the same position as in the final game. Both the demo and final version use a wooden floor design, rather than the diagonal brick pattern seen in Generation I. Compared to the demo's map, the final version adds a window to the north wall, shifts the TV over slightly to the west and adds an adjacent chest of drawers – other than these minor changes the two maps are identical.

2F

Generation I	Space World '97	Final

The upper floor exhibits a few more differences. The demo's version lacks the table present in Generation I, the bookshelves are placed in the north-west corner and the PC is shifted over to accommodate their presence. A window is present on the north wall, reminiscent of the shuttered windows present in the original Generation I map. Finally, the TV and Nintendo 64 are placed off-center to the east.

The final version makes some changes which bring the room a little closer to the Generation I version. The table missing from the demo's version is restored, albeit in a slightly different position to the original, and the TV and Nintendo 64 are shifted back over to the center of the room. The bookshelves from the demo's version are kept but relocated to just west of the staircase, covering the area where the demo's window was located.

Blue's House

As with Red's house above, what appears to be the interior for Blue's house is also housed in the opposite building compared to Generation I and the final game. Again, for simplicity's sake the table below compares the map with Blue's house from Generation I and the final game.

1F

Generation I	Space World '97	Final

Blue's house in the demo is very different to either Generation I or the final game. As with Red's house, the demo's map uses a wooden floor rather than the diagonal brick pattern seen in Generation I – unlike Red's house, however, this was changed again to a carpeted floor for the final game. The demo map is more sparsely decorated overall, lacking the pot plants, bookshelves and Town Map seen in the original, though it does add a TV positioned against the north wall. The final version keeps the TV – shifting its position slightly to the west – restores the missing plants, the map and the two bookshelves in the northwest corner from the Generation I version, and also adds a radio in the northeast corner of the room.

The demo's map is also larger than either the Generation I map or the final version, sporting an entirely new kitchen area on the west side of the room. This area largely matches the kitchen area seen in the player's own house – albeit omitting the fridge-freezer seen in that version – and features some interesting tile placement, with a second TV connected to a Nintendo 64 seemingly placed in the middle of the kitchen floor! Interestingly, the Nintendo 64 uses different tiles to the one seen elsewhere, and appears to be sitting on some sort of small mat. The final version removes this extra area entirely, reverting the map back to the size of the Generation I version.

Pallet Town Laboratory

Generation I	Space World '97	Final

The demo's Pallet Town laboratory differs greatly from both Generation I and the final game. While the map retains a roughly similar layout, it's compressed to fit within a much smaller map size, and the general aesthetic looks quite different with a brick-patterned floor instead of the original's wooden floorboards. The two rows of four bookshelves present in the original have been reduced to two rows of two bookshelves in the demo – even with the map's reduced width, this still leaves the gap between them much wider than in Generation I's map. The table and bookshelves in the northeast corner of Generation I's map are completely missing from the demo. The wall scrolls on the north wall remain, though are spaced further apart in the demo. Finally, the demo's map replaces the unique PC in the northwest corner with the standard model used elsewhere, and removes the second table east of the PC.

The final layout seems to scrap the demo's map entirely, reverting the layout and most of the graphics to match Generation I with a few minor changes. As with the final New Bark Town laboratory, a trash can has been added to the right of the table which housed the player's started Pokémon in the Generation I map. The table to the right of the PC has been removed, and two closed windows have been added to the wall north of where it was located. The final version's bookshelves use a different design to the Generation I, though tiles for the Generation I style shelves not only exist but are actually used in the aforementioned New Bark Town laboratory. Other than these minor differences, the rest of the map is identical to Generation I.

Celadon Game Corner

Main Building

Generation I	Space World '97	Final

The demo's version of the Celadon Game Corner appears to have been built from scratch rather than using the original Generation I map as a base - while the layout is similar in concept, the scale and positioning of the various elements all differ. The demo's counter is closed off on both the eastern and western sides, though the latter is somewhat unecessary given that it connects directly to the western wall of the room. The demo's version also features less slot machines overall, with only five seats present per row of machines. The demo's entrance mat has been moved to be horizontally central, and is double the normal width. Finally, the decorative elements such as the bookshelves and poster are completely absent from the demo's map.

In contrast, the final version's layout has been completely reworked to ensure greater accuracy to the Generation I version, with the scale and position of elements matching exactly in most instances. Compared to the Generation I version, a till has been added to the counter, and the eastern side of the counter has been closed off in a manner similar to the demo's version. Four of the bookshelves have also been replaced with pot plants, adding some more visual variety, and a second poster has been added on the north wall to the east of the one present in the original.

Both the demo and the final version omit the secret staircase to Team Rocket's hideout – in the Generation I games, this was hidden until the player interacted with the poster on the north wall.

Prize Building

Generation I	Space World '97	Final

As with the Game Corner, the demo's Prize Building also differs greatly from the original. Although the map's size matches the Generation I version, the demo's map features a manned counter in front of rows of well-stocked shelving as opposed to the original's nondescript holes in the wall.

The final version returns to the original concept but significantly scales down the map's size, leaving only two holes in the wall and removing the decorative bookshelves.

Celadon Department Store

The tileset used for these maps has several differences, including a different floor pattern, different styled shelving and differently shaded stairways. Even at this early stage of development, in spite of the aesthetic differences the layout of these maps are very close to their final form already – as a result, they bear little resemblance to their Generation I equivalents.

1F

Generation I	Space World '97	Final

The demo's layout is largely the same as the final, though at least attempts echo the Generation I original a little closer. The entrance is placed roughly matching the position of the original east entrance, and the counter is placed slightly off-center to the west. The final version moves the entrance to the center and the counter to the far east of the map, and adds a till to the easternmost counter.

2F

Generation I	Space World '97	Final

The demo's layout positions some shelving south of the counter and a till on top the counter, both of which are removed in the final version. Other than that, their layouts are identical.

3F

Generation I	Space World '97	Final

The demo's layout has a till positioned on the westernmost counter – in the final game, it's moved to the easternmost counter. Other than that, their layouts are identical.

4F

Generation I	Space World '97	Final

The demo's layout has a till positioned atop the counter – the final's layout removes this. Other than that, their layouts are identical.

5F

Generation I	Space World '97	Final

This map's layout is identical to the final game's layout-wise, with only the aforementioned tileset differences distinguishing the two.

Celadon Condominiums

1F

Generation I	Space World '97	Final

2F

Generation I	Space World '97	Final

3F

Generation I	Space World '97	Final

Rooftop

Generation I	Space World '97	Final

Rooftop House

Generation I	Space World '97	Final

The demo's rooftop house differs greatly from both its Generation I equivalent and the final version. The demo's map retains the brick-patterned floor from Generation I, though tileset differences mean the design is mirrored. The table is slightly larger in size, and is shifted northwest from its original position. Most other decorations from the Generation I version have been omitted, including the book, pot plants, chair, window and blackboard – only the bookshelf in the northeast corner remains, though the demo adds three more bookshelves to accompany it. The entrance mat is placed horizontally central rather than slightly to the west as in the original.

The final map bears little resemblance to the demo's map, instead using a layout identical to Blue's House. This brings some elements – such as the pot plants, entrance mat and table – back in line with their positions in the Generation I map, though the remainder of the room is entirely different.

Silph Co.

Generation I	Space World '97	Final

The interior of Silph Co. remains very similar to the building's ground floor from the Generation I games, retaining all of its major features unlike the version seen in the final game. The overall map size is slightly smaller than the original – likely to save space – but is still significantly larger than the final version. As in the final game, the upper floors cannot be accessed and there is no elevator present.

Unused Caves

There are some cave areas that cannot be accessed without debug mode, and some of them are known to contain mine carts.

Possible Sinnoh Cities

There are three cities that bear a resemblance to ones found in Diamond, Pearl, and Platinum. In the Gold/Silver prototype ROM, they go by "New Type," "North," and "Blue Forest." New Type seemingly features a port (given the presence of sailors and a captain) and bears a very similar layout to Canalave City. "North" and "Blue Forest" are both covered in snow, and may have served as inspiration for Snowpoint City. Additionally, the route connecting the two snowy cities is comparable to Route 223, which connects Sunyshore City and the Pokemon League.

Notably, the music used for Canalave City in Diamond/Pearl/Platinum is a remix of the credits music from Gold/Silver/Crystal. This could be a reference to the city having been originally designed for these games.

New Type vs. Canalave City	North vs. Snowpoint City	Blue Forest vs. Snowpoint City
Much like Canalave City, New Type defining feature is a canal dividing the city into two. It has an ocean to the north, similar bridge placement, nearly identical building placement, and a southeast connection to a route.	North is covered with snow, and the buildings and the cave are arranged roughly into a star shape comparable to Snowpoint City. Both locations also have ocean located to the south.	Blue Forest is covered with snow and has its buildings arranged around a central building, much like Snowpoint City. Both locations also have a southwest connection to a route.

Leftover older collision format

To do: Investigate whether tile assignments for whirlpools, pits and ladders exist in the collision mapping format the demo actually uses

All of the tilesets other than those used in the maps intended to be accessible in the demo use an alternate collision mapping that is mostly incompatible with the demo's near-final implementation.

Tile type	Earlier mapping	Proto mapping
floor	0	0
solid	1	7
ledge	11	7 (beside the tile you hop from, like A3)
water	21,2C	21,29
whirlpool	44	?
waterfall	48	22
pit	57	?
caverock/minetrack	59	60
warp	60, 61	71
ladder	62	?
sign	70, 71	95
cut tree	80	12
grass	82,8C	18
tree	FF	05