Proto:Sonic the Hedgehog 2 (Mega Drive)/Прототип Саймон Вейя
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Прототип Саймон Вейя Sonic the Hedgehog 2 это более доработанная версия чем сборка Nick Arcade, однако здесь имеется много недоделанных элементов, такие как макеты уровней, и особенности, которые полностью ещё не работают. Также здесь есть много-премного неиспользованной графики, которой можно найти через хакинг. В дополнении, также есть несколько уровней, которые не вошли в финальной версии, но многие из них представляют себе пустоту. Прототип Саймон Вейя стал известен как один из первых прототипов видеоигр с детальным анализом. Он подогнал интерес в прототипах не только для фанбазы Соника, но и для игрового комьюнити в целом.
По словам drx, этот прототип был собран в начале августа 1992-го года. Этот прототип был назван в честь Саймона Вейя, который нашёл на одной китайской странице GeoCities в 1998-ом. Однако, ходят слухи, что сначала был найден в сентябре 92-го года и дистрибутирован через номера BBS (bulletin board system). Первоначальные корни реального ROM-файла неизвестны. Журналы время от времени присваивали слив какому-нибудь другому журналу, а Юдзи Нака в 2005-ом утверждает, что это пришло с демонстрационного картриджа, который был украден с New York toy fair в 92-ом и позже задамплен.
Contents
Общее
- Логотип Sega не отображается при запуске игры. Логотип появится как только вы завершите игру, пройдя четыре зоны, либо посмотрев демонстрацию до конца.
- Титульный экран такой-же, как в сборке Nick Arcade.
- Любая Зона с водой будет глючить при игре в режиме двух игроков, так как игра неправильно загружает графику в таком случае.
- Спец-стадии по-прежнему копируют макет из Sonic 1, хотя музыка есть.
- Информация режима отладки теперь корректно отображается белым цветом в каждой зоне, однако координаты камеры теперь "сходят с ума".
- Четыре цифры в правом нижнем углу теперь обозначают высоту уровня воды (даже в зонах без воды), а четыре цифры в левом нижнем углу увеличивают значение на единицу каждую игровую секунду.
- Вход и выход из отладки теперь автоматически переносит Тейлза к игроку.
- Если вы вставите картридж с прототипом в картридж с игрой "Sonic & Knuckles", либо иным образом соедините их вместе, вы запустите полную версию Blue Sphere, как это было в сборке Nick Arcade и сборке от 21 августа. Это происходит по вине использования серийного кода-заполнителя из "Sonic the Hedgehog"(Rev01), который определяет состояние запуска игры.
- Демонстрация игрового процесса такая же, как и в сборке Nick Arcade , и еще не успели перезаписать, чтобы соответствовать последующим изменениям макета.
- Меню выбора уровня имеет тот же общий вид, что и в Sonic 1 .
- Спец-стадии пока нельзя выбрать.
- В игре по-прежнему нет контрольных точек, однако её можно разместить через режим отладки, где видно, что она имеет совершенно другой дизайн, чем та, которая использовалася в финальной версии игры.
- Стартовая точка игрока расположена левее в большинстве зон. Однако это не влияет на все уровни.
| Simon Wai - September 14, 1992 | CENSOR, и позже |
|---|---|
 |
 |
- Несмотря на то, что она больше похожа на финальную версию, тем не менее затенение ещё не закончено.
- Вход в меню выбора уровня - A + Start на титульном экране.
- "Ночной режим" - C + Start
- В отличие от финальной версии игры, режим отладки не обязательно должен быть активен, чтобы это работало.
- Режим на двух игроков - B, находясь в меню выбора уровня (не работает там где есть вода).
- Режим отладки - C, C, Вверх, вниз (4x), вверх (для полной активации нажмите Start и удерживайте A до появления уровня, либо просто A, находясь в меню выбора уровня).
- Вы также можете включить его с помощью кода исправления FFFFFA:0001. Звук кольца будет воспроизводиться, даже если C никогда не нажималась, но больше ничего не происходит.
- Переключатели планов видны в режиме отладки этой версии. Звук контрольной точки издается всякий раз, когда Соник или Тейлз проходят через них.
- Тейлз появляется на место Соника при выходе из режима размещения объектов.
Gameplay
- At this point, Tails is still quasi-independent:
- Player 2 is able to control Tails, except Tails will also follow Sonic.
- Tails cannot complete a level on his own, since the game only loads the goal sign when Sonic approaches it.
- The AI is much simpler; it only follows Sonic and does not try to keep up.
- Tails loses the player's rings when he is hit.
- If he dies, he drops back in from the top of the screen and immediately goes into a roll when he hits the ground because he can't fly yet.
- If Player 1 completes a level, Tails can be controlled if Sonic is off-screen.
- As with the Nick Arcade build, the spin dash is still a work-in-progress, as Sonic and Tails can only charge it up once; the sound for when Sonic spins in Sonic the Hedgehog is still heard due to there not yet being a specific sound effect for the spin dash.
- As with the Nick Arcade build, the timer resets to 9:00 when it approaches 9:59 in order to allow the player to test the stages for extended periods of time.
- The screen doesn't scroll up or down when you look up or down for a certain period of time.
- Bubbles are loaded incorrectly from the VRAM.
- A unique bug is present in this prototype: upon collecting 100 rings, the game will play the Death Egg Zone music instead of the usual 1-Up sound. This is because sound bank 88 (which was the 1-Up sound in the Nick Arcade build) has since been overwritten and not edited to play the correct sound. Game Genie code XCOT-AAC4 will cause the correct tune to play. The monitors, on the other hand, were programmed with the correct 1-Up sound.
- The underwater countdown music uses the Level Select theme. When Sonic gets out of the water, the Emerald Hill music begins.
- Spike behavior is the same as in Sonic 1 - getting hit does not give the player invincibility frames to avoid being immediately hurt from other spikes.
- Rolling tubes do not force the player to roll, notably in Hill Top and Hidden Palace.
- Speed Shoes do not increase the speed of the music.
- No title cards or score tallies appear at the beginning and end of an Act respectively. However, the clear theme does play in the case of the latter.
- The splashing animation is corrupted, showing misaligned bubbles instead of a splashing sprite. Tails has no splashing effects.
- 2-Player mode has the split-screen for Sonic and Tails, but is otherwise identical to 1-Player mode. The level will still restart if Sonic dies.
- Aquatic Ruin, Chemical Plant, Hill Top, and Emerald Hill are the only Zones where signposts appear. Capsules do not exist yet.
Зоны
Без доступа к выбору уровня игра даёт поиграть в Aquatic Ruin, Chemical Plant, Hill Top и Emerald Hill. После побития босса в Emerald Hill, игра перезагружается в экран SEGA из Sonic 1, не смотря на то, что оно выключено при запуске.
Порядок зон
Зоны, которые являются "заглушкой" или остатком из прошлого билда выделены курсивом, новые - жирным, и перемещённые слоты зон выделены синим цветом.
| Sonic 1 | Nick Arcade | Simon Wai | Final | |
|---|---|---|---|---|
| 00 | Green Hill | Green Hill | Green Hill (Emerald Hill) |
Emerald Hill |
| 01 | Labyrinth | Labyrinth leftovers | ||
| 02 | Marble | Chemical Plant | Wood | Wood leftovers |
| 03 | Star Light | Emerald Hill | ||
| 04 | Spring Yard | Hidden Palace | Metropolis | Metropolis |
| 05 | Scrap Brain | Hill Top | Metropolis 3 | Metropolis 3 |
| 06 | Wing Fortress | |||
| 07 | Hill Top | Hill Top | ||
| 08 | Hidden Palace | Hidden Palace | ||
| 09 | ||||
| 0A | Oil Ocean | Oil Ocean | ||
| 0B | Dust Hill (Mystic Cave) |
Mystic Cave | ||
| 0C | Casino Night | Casino Night | ||
| 0D | Chemical Plant | Chemical Plant | ||
| 0E | Genocide City | Death Egg | ||
| 0F | Neo Green Hill (Aquatic Ruin) |
Aquatic Ruin | ||
| 10 | Death Egg | Sky Chase | ||
This earlier Zone order seems to largely match the order seen in early concepts for the game which involved time travel. According to the timeline, Zone 01 would be Ocean Wind, Zone 03 would be Sand Shower, Zone 06 would be Blue Lake/Blue Ocean, and Zone 09 would be Rock World. However, there are some deviations from those concepts even at this point in development: it appears that Zone 05 was likely going to be Tropical Plant/Tropical Sun, and it's Metropolis 3 both here and in the final. Additionally, Neo Green Hill doesn't appear in any of those timezone maps. Most curiously, Mystic Cave is also unmentioned in those concepts, and is called Dust Hill here; the latter name is mentioned in the early timeline and assigned to what seems to be a crumbling Green Hill.
For most Zones out of the "normal" game loop (Neo Green Hill -> Chemical Plant -> Hill Top -> Green Hill), placing object 3A in the final Act will make the game jump to the next Zone by ID. For ID 01, ID 03, ID 06, ID 09, and Death Egg, the game will jump to Green Hill.
Subpages
 | Green Hill Zone Behold the monkeyfication! |
 | Metropolis Zone Vertical wrapping! |
 | Hill Top Zone Lava hurts now! |
 | Oil Ocean Zone Too many checkered balls! |
 | Dust Hill Zone A pretty empty cavern! |
 | Casino Night Zone Pink and blue nightmare! |
 | Chemical Plant Zone The same, but different! |
 | Neo Green Hill Zone Semi-aquatic ruins! |
Зона ID 01
- Использует палитру и музыку из Emerald Hill и полностью отсутствует список объектов из режима отладки, кроме кольца и статичного монитора.
This empty stage slot can be accessed by entering Game Genie code AA7A-ACGY or Pro Action Replay code FFFE10:0100 and choosing Green Hill Zone Stage 0. As with Genocide City, Death Egg, and Wood Zone Act 2, Sonic and Tails immediately fall to their deaths upon entering.
Going by early concept art which shows roughly what the level order would have originally looked like, and lines up rather closely with the internal order, this slot was going to be used for a level called "Ocean Wind Zone".
Wood Zone (ID 02)
A scrapped Zone. It seems that only a small portion was ever implemented and did not get too far.
- What exists of the level quickly ends because of a ramp that has a solid platform blocking the top of it, which is impossible to get past without Debug Mode. Even then, the rest of the level is incomplete, with a nonfunctional conveyor belt near the top.
- Plays the music for Metropolis Zone. Due to the ID in this prototype be ID 03, Which is marble's music ID. In a earlier prototype, the zone played Marble Zone music because it is a copy of ID 03 which used to chemical plant zone.
- If you use Debug Mode, you can move upwards in the level and find a conveyor belt, but it doesn't work.
- Level collision is glitchy.
- Unlike any other zone in the game, the entire background is located under the stage instead of in the background layer.
- Act 2 is empty, containing nothing but Sonic and Tails falling to their deaths.
Zone ID 03
- Uses the final Oil Ocean theme, and only has the default Ring and Static monitor objects in debug mode.
This empty stage slot can be accessed by entering Game Genie code AA7A-AGGY or Pro Action Replay code FFFE10:0300 and choosing "Green Hill Zone Stage 0" on the stage select. Like Genocide City and Death Egg, this stage uses Emerald Hill's palette and is entirely empty, causing Sonic and Tails to immediately fall to their deaths upon entering. In the Nick Arcade prototype, this slot was used for Emerald Hill Zone. Going off of early concept art which shows roughly what the level order would have originally looked like, and lines up rather closely with the internal order, this slot was going to be used for a desert themed level named "Sand Shower Zone".
Zone ID 06
- Contains a pitch-black background, uses what would become the two-player Emerald Hill Zone theme in the final, Casino Night's palette, and only has default Ring and Static monitor objects in debug mode.
This is an empty stage slot that can be accessed by entering the Game Genie code AA7A-ANGY or Pro Action Replay code FFFE10:0600 and choosing "Green Hill Stage 0" on the stage select. As with the others, the stage is entirely empty, prompting Sonic and Tails to fall to their immediate deaths upon entering.
According to concept art, which closely matches up with the internal stage order, this was originally meant for a stage called "Blue Lake/Blue Ocean Zone"; from September 14th onwards, the stage is used for Wing Fortress Zone.
Hidden Palace Zone (ID 08)
Имеет несколько изменении по сравнению с прошлой версии. Для расширенной информации, см. страницу прототипа Nick Arcade.
- This Zone has had mainly minor behind-the-scenes changes since the Nick Arcade build.
- Sonic and Tails have had their underwater palette updated.
- The music has been changed to what would be the 2P VS version of Mystic Cave in the final.
- The debug list has had a face lift, and all the unused objects that were in the Nick Arcade build are now gone. The items that are still there have fixed previews.
- The collision bug caused by spindashing into the big emerald from far away has been fixed.
- The art for Emerald Hill's enemies are no longer loaded in this Zone.
- This and Emerald Hill are the only Zones in this build with badniks in it.
Zone ID 09
- Uses the Emerald Hill Zone palette, the Sky Chase Zone theme as its default background music, and only has default Ring and Static monitor objects in debug mode.
By entering Game Genie code AA7A-AWGY or Pro Action Replay code FFFE10:0900 and choosing "Green Hill Stage 0" on the stage select, the player will be taken to yet another empty Zone that promptly causes Sonic and Tails to fall to their deaths. According to concept art, which closely matches up with the internal stage order, this was likely meant for a stage called "Rock World Zone".
Genocide City Zone (ID 0E)
- Both Acts use Chemical Plant's music, Emerald Hill's palette, and the default Ring and Static Monitor objects in debug mode. They're also completely empty.
This Zone was originally designed as a single-Act mechanical-themed area. It is called "Genocide City" in this build because of an average understanding of English by the person who originally named it, then changed to Cyber City after this prototype. Before the team started putting it in the game, though, it was scrapped; the level design was used for Metropolis Act 3, while the graphics were used in Level 3 of Sonic Spinball (The Machine).
Interestingly, the level slot for this level was overwritten with Death Egg in the final, while the slot for Death Egg in this prototype (ID 10) was overwritten with Sky Chase.
Death Egg Zone (ID 10)
- Both Acts use Emerald Hill's palette, but play no music and are empty. Dying here causes all sound to cut off. However, if you use the 100 ring glitch via debug mode and then die, it will not cut off for that particular death.
Music
The tracks for the final's invincibility, drowning, ending, Song #10, and credits themes are all nonexistent while the continue, game over, extra life, and Chaos Emerald fanfares are already in their final form. Everything else, however, is at least slightly different. Most, if not all, are based on the Masa's Demo versions of the tracks (notably Super Sonic and Casino Night Zone).
| Sound ID | Audio | Name | Notes |
|---|---|---|---|
| $99 | Title Screen | Still uses the theme from Sonic 1. | |
| $8A - $8B | Stage Select/Drowning | The snare sample has been replaced with a kick, and the trumpet sample is heavier. A backing trumpet in the left channel is instead a celesta. The right channel has an extra bottle-like instrument. | |
| $87 | Neo Green Hill Zone (Aquatic Ruin Zone) | The instrumentation is heavier and lacks a backing part in the left channel. | |
| $8D | Chemical Plant Zone/Genocide City Zone | About 1.4% slower than the final, and the first pitch bend before the loop comes in late. | |
| $96 - $97 | Hill Top Zone | About 11.35% slower, and the harmonica-like instrument sounds slightly different. | |
| $82 | Green Hill Zone (Emerald Hill Zone) | About .3% slower, and some of the percussion is more distinct. | |
| $83 | Wood Zone/Metropolis Zone | About 1.6% slower. The instrumentation is radically different, with more grating and off-key tones. Also uses a different off-beat sample, and the melody has a simpler, downward pitch bend. | |
| $86 | Hidden Palace Zone (Mystic Cave 2-Player) | About .6% faster. The intro has more quavery instruments, and the mix is overall less full. | |
| $81 | Oil Ocean Zone (Casino Night 2-Player) | About 10.75% slower. | |
| $90 - $91 | Sand Shower Zone (Oil Ocean Zone) | About 8.35% slower. Has more distinctive intro instrumentation, and some backing instrument samples are slightly different. | |
| $85 | Dust Hill Zone (Mystic Cave Zone) | About 6.6% slower. | |
| $84 | Casino Night Zone | About 12.93% slower. The instrumentation is much different, giving a sleazier feel. The percussion and bass are much more ornamented. The prototype has an extra harmony line just before the loop. | |
| $8F | Zone ID 09 (Sky Chase Zone) | About 6.95% slower, and has a louder bell sample. | |
| $92 | Unused (Wing Fortress Zone) | About 6.23% slower. The backing instruments are slightly altered and much louder, sometimes to the point of almost drowning out the melody. | |
| $88 | "100 Rings" Extra Life (Death Egg Zone) | About 15.65% faster, and has much fainter and sicklier instrumentation, plus completely different percussion. The main instrument also sounds like when you collect a ring. | |
| $9A | Act Complete | Seems to have a very slight jump in the first two notes that the final doesn't. | |
| $8E | Dr. Eggman | About .25% slower. Has a much heavier mix, and a faint additional backing part. | |
| $8C | Unused (Final Boss) | About 1% slower. Has a different, less distinct kick sample. | |
| $95 | Invincibility (Super Sonic) | About 7.4% slower. The right channel has an extra "alarm" instrument in the intro. This was later replaced with a different theme and became the music for Super Sonic. | |
| $94 | Unused (2-Player Results) | About 1.5% slower. | |
| $93 | Zone ID 06 (Emerald Hill 2-Player) | About 6.64% slower. Has a slightly shorter kick sample. | |
| $89 | Unused (Special Stage) | Has a very slightly more prominent kick sample. |
Неиспользованные графики и объекты
Большинство изменённых и неспользованных графиков и объектов в прототипе Nick Arcade всё ещё здесь за некоторыми исключениями:
- The signposts and fireballs use their final graphics.
- The early animated Chemical Plant Zone graphics are no longer in the ROM.
- The JIS X 0201 character set has been deleted.
- Hill Top Zone's one-way barrier and the nebulous gray switch have been coded and placed in various Zones.
- The Chemical Plant Zone floating platforms now behave as they do in the final game.
Graphics
| Graphic | Offset | Compression | Description |
|---|---|---|---|
 |
0x28A6A | None | Animated drill tiles for use in Metropolis Zone. These are loaded to slots 368-377 in VRAM, though the game mistakenly loads two copies of the horizontal drill instead of the vertical drill. |
 |
0x77472 | Nemesis | This is the vine that acts as a switch in Mystic Cave Zone. It has not yet been coded at this point. |
 |
0x7756A | Nemesis | The hanging vine from Mystic Cave Zone. It hasn't been coded, either. |
 |
0x4E8A6 | None | These graphics are leftovers from Chiki Chiki Boys. This probably resulted from the process of compiling and burning ROMs onto EPROM chips. |
 |
0x4B76C | None |
Objects
Monitor subtype 08. Breaking this monitor will load Super Sonic's palette.
The same effect can be seen through Pro Action Replay code FFF65F:FF00. Super Sonic's unique sprites, speed, invincibility, jump height, and ring drain are not yet present.
Неиспользованное демо
There's partial data for a Metropolis Zone Act 3 in the demo table that can be viewed using patch code FFFFF2:0004.
This is actually caused by the demo table not being converted after the Nick Arcade prototype:
| Zone ID | 02 | 03 | 04 | 05 | 05 | 05 | 05 | 05 | 04 | 04 | 04 | 04 |
|---|
02 is Chemical Plant, 03 is Hidden Palace, 04 is Green Hill, and 05 is Hill Top. The first four entries are valid, while the remaining entries are placeholders.
In the Simon Wai prototype, the table was changed:
| Zone ID | 0D | 00 | 08 | 07 | 05 | 05 | 05 | 05 | 04 | 04 | 04 | 04 |
|---|
Chemical Plant, Hidden Palace, Green Hill, and Hill Top use their new level IDs, but the duplicate Green Hill and Hill Top entries were not converted. They now point to Metropolis Act 3 and Metropolis Act 1/2 respectively.
The Metropolis Zone demo uses the input from the 2P Green Hill demo, which doesn't really work out.
Unassembled Data
Located at address 0xE5946 is a snippet of unassembled data. It starts with the comment at the top
; 圧縮前 $8000 圧縮後 $2c00 圧縮率 34.4% セル数 1024
...which translates to
; Before compression $8000 After compression $2c00 Compression ratio 34.4% Number of cells 1024
What follows is a bunch of "dc.b"s for the actual chunk data. When assembled, its data matches the beginning of Neo Green Hill Zone's chunk data located at 0xBF568. While a good chunk of the unassembled data is there, it gets cut off.
dc.b $1d,$7f,$00,$ff,$f8,$7e,$04,$01,$fb,$02,$00,$03,$04,$05,$04,$80 dc.b $ff,$fa,$ff,$07,$54,$0b,$54,$0a,$50,$0c,$50,$ff,$8f,$0d,$54,$0f dc.b $54,$0e,$50,$10,$50,$11,$52,$19,$52,$18,$ff,$ff,$fc,$1a,$52,$1b dc.b $51,$8a,$51,$8b,$52,$1c,$02,$1e,$02,$1f,$02,$2a,$9f,$ff,$02,$2b dc.b $01,$8c,$01,$8d,$f4,$1d,$02,$2c,$02,$2d,$01,$ff,$f4,$88,$01,$89 dc.b $01,$8e,$01,$8f,$02,$1a,$e4,$02,$2e,$02,$46,$c0,$2f,$e0,$ff,$1b dc.b $ec,$fc,$dc,$00,$70,$02,$c4,$d4,$ee,$18,$02,$19,$01,$3f,$f6,$fd dc.b $e4,$e6,$04,$2e,$04,$2d,$04,$9d,$fe,$77,$bd,$00,$be,$f9,$50,$31 dc.b $54,$30,$54,$2f,$7f,$f8,$56,$03,$56,$02,$56,$01,$05,$ff,$f0,$52 dc.b $1d,$52,$1e,$e1,$9f,$52,$1f,$fc,$50,$3e,$54,$3c,$56,$04,$54,$36 dc.b $09,$e0,$c4,$9c,$f8,$ea,$1a,$50,$48,$24,$41,$ba,$a4,$b2,$fc,$fc dc.b $21,$9a,$f2,$80,$f6,$9c,$fc,$1d,$5e,$92,$68,$01,$8a,$01,$8b,$ee dc.b $fc,$68,$f2,$fd,$d5,$fd,$ce,$f7,$f7,$80,$fd,$f0,$f8,$0f,$04,$35 dc.b $f0,$f8,$0d,$54,$3f,$54,$39,$7f,$fe,$54,$38,$01,$ff,$02,$00,$06 dc.b $00,$60,$1a,$54,$43,$54,$ff,$f3,$42,$55,$fe,$55,$fd,$55,$fc,$55 dc.b $fb,$54,$46,$a4,$1c,$ff,$11,$50,$49,$54,$44,$54,$52,$50,$51,$54 dc.b $50,$80,$b2,$12,$8e,$8f,$4e,$06,$fc,$f2,$f2,$3c,$90,$fa,$58,$5c dc.b $80,$f8,$20,$60,$f8,$20,$40,$f3,$02,$0a,$02,$2c,$3c,$0b,$70,$40 dc.b $f6,$86,$2a,$54,$29,$52,$f4,$62,$f8,$11,$c0,$f1,$2a,$52,$2b,$bc dc.b $f4,$fc,$1a,$62,$f1,$72,$6e,$f2,$f2,$78,$00,$16,$bd,$fe,$00,$17 dc.b $fc,$f8,$0c,$18,$00,$19,$fc,$f8,$0c,$e0,$f8,$2e,$54,$06,$54,$04 dc.b $50,$fb,$be,$08,$50,$09,$f8,$fe,$50,$12,$50,$13,$fc,$f8,$0b,$00 dc.b $14,$00,$15,$f7,$fc,$fc,$f8,$0c,$1e,$00,$1f,$fc,$f8,$0c,$20,$00 dc.b $21,$fc,$f4,$50,$f5,$f7,$07,$50,$f6,$50,$f7,$e8,$fe,$50,$f8,$50 dc.b $87,$52,$1b,$3c,$1f,$fd,$e0,$fc,$50,$f9,$50,$85,$40,$ae,$f1,$50 dc.b $fa,$50,$fb,$07,$e1,$50,$fc,$50,$8b,$f6,$86,$f1,$2a,$1c,$50,$2f dc.b $b2,$8c,$50,$8d,$50,$8e,$24,$f1,$24,$ee,$0a,$24,$9a,$eb,$92,$f3 dc.b $7c,$f2,$0a,$f2,$e0,$ec,$af,$9f,$dc,$05,$6d,$ae,$ef,$60,$f2,$1a dc.b $06,$25,$01,$89,$45,$94,$e4,$4e,$ed,$e0,$e8,$2a,$f3,$11,$ae,$e0 dc.b $f0,$c0,$28,$02,$29,$38,$f6,$00,$8c,$c0,$fd,$ce,$e4,$a0,$59,$44 dc.b $c0,$8d,$ce,$00,$ea,$bc,$e0,$0b,$a8,$d6,$fc,$1b,$dc,$e2,$f8,$f0 dc.b $68,$ec,$ea,$bd,$f8,$e5,$20,$f0,$15,$a0,$e8,$09,$20,$f0,$16,$50 dc.b $54,$0d,$20,$f5,$1b,$52,$1c,$92,$a0,$dc,$e4,$60,$e5,$a8,$6e,$e2 dc.b $80,$6e,$e4,$82,$28,$12,$fc,$4e,$e2,$80,$6e,$e2,$44,$ee,$e7,$fa dc.b $00,$66,$8e,$fe,$56,$25,$51,$8c,$c0,$c2,$e4,$bc,$f0,$fe,$38,$02 dc.b $15,$d8,$80,$fc,$06,$f8,$9d,$59,$f0,$12,$02,$11,$02,$10,$80,$fc dc.b $f6,$5a,$30,$fe,$e0,$ee,$13,$80,$2e,$52,$2f,$f9,$6d,$7f,$f5,$05 dc.b $f9,$02,$16,$00,$23,$00,$24,$e4,$f3,$f2,$f1,$80,$ea,$50,$2b,$20 dc.b $8c,$50,$76,$5a,$f3,$84,$51,$89,$40,$a0,$5c,$58,$60,$6e,$00,$f9 dc.b $11,$95,$ae,$f5,$1b,$5a,$f6,$6a,$e3,$6a,$fc,$02,$82,$e8,$10,$96 dc.b $ee,$ea,$47,$0f,$ce,$f2,$13,$02,$14,$76,$b2,$f2,$16,$02,$17,$44 dc.b $8c,$ee,$e4,$88,$ea,$33,$fa,$d4,$04,$23,$f2,$e4,$e6,$fc,$54,$27 dc.b $54,$4f,$e4,$94,$54,$93,$04,$92,$e0,$ea,$e4,$f2,$54,$af,$af,$85 dc.b $54,$97,$04,$98,$c6,$fd,$52,$f3,$54,$87,$54,$99,$bc,$fc,$ff,$ff dc.b $00,$e8,$39,$50,$6b,$50,$6c,$50,$6d,$50,$73,$50,$74,$50,$75,$50 dc.b $76,$50,$ff,$8f,$77,$50,$78,$50,$79,$50,$15,$50,$7a,$50,$7b,$50 dc.b $7c,$5e,$51,$f8,$20,$ee,$12,$00,$13,$fc,$f8,$0c,$00,$e8,$0e,$08 dc.b $6e,$e2,$4d,$d2,$fc,$f2,$bc,$d2,$8a,$32,$ee,$f6,$60,$04,$f0,$fa dc.b $22,$fa,$00,$23,$06,$5c,$32,$fc,$80,$f1,$26,$54,$25,$67,$c1,$50 dc.b $27,$f6,$58,$20,$80,$f2,$20,$60,$d1,$51,$55,$f1,$6d,$d8,$80,$f3 dc.b $cc,$f3,$28,$f1,$80,$f0,$09,$12,$dc,$2d,$a3,$04,$e1,$d8,$ea,$18 dc.b $84,$d6,$a0,$d8,$4f,$41,$80,$f4,$02,$25,$01,$24,$ae,$05,$c0,$80 dc.b $f4,$88,$23,$f0,$25,$92,$12,$05,$fa,$ab,$02,$d6,$e0,$ff,$92,$f3 dc.b $e0,$fc,$8a,$f1,$e0,$86,$a7,$88,$10,$88,$01,$f9,$01,$fa,$80,$5d dc.b $21,$05,$fa,$60,$fc,$50,$28,$80,$fe,$e0,$e9,$fc,$2d,$1b,$94,$84 dc.b $bc,$c9,$52,$86,$c0,$ce,$64,$ea,$2a,$7c,$74,$19,$fa,$e9,$76,$d2 dc.b $58,$55,$05,$48,$01,$5d,$f9,$5e,$f2,$fc,$f4,$57,$05,$52,$85,$e9 dc.b $1b,$05,$49,$f4,$fe,$02,$d5,$ff,$f2,$f4,$f8,$09,$ff,$f8,$32,$32 dc.b $d6,$96,$ca,$ff,$d8,$38,$50,$39,$50,$3f,$a2,$49,$a2,$4a,$fc,$54 dc.b $ea,$fe,$7f,$af,$02,$0d,$02,$0e,$02,$0f,$06,$0d,$cc,$f8,$0a,$c1 dc.b $00,$c2,$bc,$f8,$0c,$d2,$f9,$f0,$f8,$2c,$c0,$e1,$f0,$07,$04,$05 dc.b $f1,$07,$51,$bf,$aa,$75,$50,$c1,$50,$c2,$54,$31,$a0,$c6,$ac,$da dc.b $ee,$f5,$46,$f2,$aa,$20,$60,$f3,$e4,$f3,$dc,$de,$d2,$cc,$6e,$de dc.b $d4,$52,$d8,$0c,$b2,$ac,$e2,$e8,$5c,$f3,$d8,$c8,$e2,$82,$b2,$20 dc.b $de,$34,$f3,$ec,$1a,$f2,$84,$db,$b8,$84,$6a,$e8,$fe,$c4,$b8,$c0 dc.b $b8,$49,$20,$fc,$c0,$b8,$10,$1b,$2d,$e8,$08,$f3,$00,$f1,$51,$fc dc.b $da,$8a,$f2,$bd,$ae,$d7,$97,$01,$73,$06,$99,$fc,$fe,$98,$f6,$e4 dc.b $04,$0a,$fc,$f6,$f4,$9b,$7f,$46,$f6,$06,$9f,$02,$e2,$0a,$98,$0a dc.b $f4,$e6,$38,$e9,$fe,$e3,$04,$00,$fa,$f4,$fc,$50,$f5,$93,$43,$e2 dc.b $06,$91,$02,$fe,$92,$f8,$f0,$07,$84,$98,$06,$96,$02,$fe,$b0,$f8 dc.b $91,$20,$06,$95,$f0,$c4,$fe,$9a,$8d,$87,$f8,$06,$9c,$f0,$e4,$02 dc.b $e5,$aa,$08,$fe,$02,$bc,$f8,$fa,$eb,$32,$50,$33,$50,$34,$9f,$ff dc.b $50,$b4,$50,$b5,$50,$b6,$fc,$b7,$50,$b8,$50,$b9,$54,$e1,$fb,$b9 dc.b $f0,$fe,$ba,$f0,$bb,$f0,$bc,$68,$d2,$06,$19,$fc,$ff,$f4,$ae,$fc dc.b $ad,$fc,$ac,$fc,$ab,$fc,$aa,$f0,$fc,$a6,$fc,$fb,$8b,$a5,$fc,$a4 dc.b $48,$d6,$30,$be,$3c,$a3,$3c,$a2,$38,$d0,$09,$c5,$56,$f0,$a1,$58 dc.b $c0,$0b,$f0,$a0,$f0,$f8,$0e,$9f,$40,$b0,$52,$58,$d5,$b5,$6e,$80 dc.b $f7,$58,$d5,$80,$f0,$0d,$f1,$72,$cc,$80,$f7,$01,$6d,$c0,$f8,$1e dc.b $58,$45,$fd,$48,$f6,$bc,$fc,$c0,$c0,$ee,$9c,$ea,$18,$a1,$6d,$01 dc.b $4b,$f8,$48,$05,$55,$8e,$cc,$a6,$f0,$52,$05,$57,$d1,$a0,$05,$56 dc.b $ec,$38,$ea,$88,$a0,$32,$cb,$c0,$fe,$ec,$fe,$c6,$f0,$ec,$fe,$01 dc.b $1f,$02,$5d,$01,$ff,$bf,$0f,$01,$10,$02,$45,$02,$30,$02,$31,$c1 dc.b $da,$c2,$33,$c2,$32,$ff,$cf,$d2,$e2,$02,$34,$02,$35,$02,$32,$c1 dc.b $db,$c2,$3c,$02,$3d,$7f,$00,$f0,$47,$02,$36,$02,$37,$c1,$dc,$e0 dc.b $ea,$0e,$ff,$f0,$44,$ce,$c5,$d8,$c1,$d9,$02,$40,$02,$f0,$ff,$41 dc.b $f0,$c1,$d4,$c1,$d5,$c1,$d6,$c1,$d7,$02,$3e,$02,$ff,$3f,$3f,$02 dc.b $46,$c0,$c1,$c0,$c2,$c2,$3a,$c2,$3b,$02,$38,$02,$39,$01,$02,$d8 dc.b $f0,$d0,$c8,$02,$7e,$c0,$c4,$f8,$30,$01,$29,$01,$2a,$02,$44,$92 dc.b $d6,$aa,$c0,$a3,$aa,$80,$d3,$8b,$2e,$ca,$d3,$a0,$c9,$9a,$d2,$a4 dc.b $cd,$aa,$eb,$80,$cf,$a4,$cd,$66,$d2,$a8,$ce,$80,$d6,$04,$5e,$72 dc.b $ce,$60,$d5,$5d,$97,$f6,$54,$61,$54,$60,$e4,$fc,$ea,$52,$1c,$e0 dc.b $a9,$63,$54,$ff,$da,$62,$54,$67,$54,$66,$54,$65,$54,$64,$f2,$bc dc.b $e0,$ac,$54,$e0,$a9,$7f,$e1,$51,$fb,$51,$fc,$51,$fd,$51,$fe,$80 dc.b $e8,$0f,$fc,$50,$ba,$5b,$50,$50,$bb,$50,$80,$e8,$14,$0c,$80,$e8 dc.b $0c,$f0,$80,$e8,$7b,$e0,$d8,$3f,$fd,$ef,$ec,$e9,$9a,$f2,$1e,$54 dc.b $9d,$54,$9c,$54,$90,$54,$8f,$92,$b7,$1c,$1f,$d5,$54,$8e,$54,$8d dc.b $50,$50,$e0,$e8,$ba,$b2,$9e,$80,$9a,$aa,$aa,$1d,$9c,$bb,$c4,$da dc.b $7c,$ea,$ba,$b2,$36,$db,$f8,$9d,$00,$be,$aa,$f4,$a0,$c8,$09,$8e dc.b $a6,$0e,$a3,$92,$c6,$c0,$9a,$d4,$04,$24,$00,$c2,$ff,$5a,$32,$f0 dc.b $09,$e6,$54,$4f,$54,$4e,$54,$4d,$54,$4c,$54,$d5,$7e,$59,$54,$9c dc.b $c3,$a8,$b1,$00,$ea,$1c,$80,$99,$57,$54,$56,$54,$5f,$11,$55,$60 dc.b $ff,$aa,$ea,$80,$9a,$a0,$fe,$06,$bc,$95,$54,$68,$d6,$5c,$d6,$12 dc.b $9c,$56,$dc,$e4,$9a,$ea,$84,$c4,$8f,$3f,$5c,$ac,$51,$09,$83,$f2 dc.b $62,$02,$63,$01,$88,$05,$7c,$a2,$f6,$51,$00,$91,$09,$24,$f2,$fc dc.b $10,$25,$05,$64,$91,$f0,$96,$b2,$ee,$61,$1d,$92,$c1,$f2,$50,$91 dc.b $a8,$c2,$fc,$fe,$f0,$96,$ac,$b0,$f0,$48,$b1,$8d,$64,$e1,$20,$c3 dc.b $f0,$00,$9e,$8c,$aa,$92,$95,$78,$f2,$60,$f8,$09,$8e,$93,$92,$f3 dc.b $d1,$f5,$72,$90,$09,$1f,$36,$44,$ef,$00,$53,$40,$b1,$fa,$f1,$50 dc.b $4a,$ff,$ff,$50,$4b,$50,$4c,$50,$4d,$50,$4e,$50,$4f,$50,$55,$50 dc.b $56,$50,$57,$3d,$48,$50,$3d,$f8,$f5,$18,$50,$40,$f6,$fc,$f7,$2a dc.b $a9,$2a,$20,$9a,$b6,$bb,$20,$90,$0a,$e8,$ee,$fe,$e8,$a4,$a4,$ff dc.b $e4,$f4,$c6,$80,$de,$0e,$b5,$50,$46,$50,$47,$50,$48,$50,$3f,$c2 dc.b $3a,$50,$3b,$50,$42,$50,$43,$a0,$ff,$51,$5f,$55,$50,$52,$50,$44 dc.b $50,$45,$d8,$f1,$3c,$f2,$e4,$c3,$2e,$f8,$09,$a0,$8e,$95,$05,$a0 dc.b $fd,$80,$88,$0a,$e0,$ef,$0e,$b2,$c5,$ce,$55,$62,$00,$bb,$5c,$f8 dc.b $0a,$60,$f6,$5c,$8a,$3c,$5a,$2b,$2a,$d2,$fe,$01,$12,$a0,$09,$52 dc.b $f3,$f0,$5a,$f3,$8e,$fe,$30,$91,$f0,$b6,$f2,$ea,$8a,$32,$c0,$d1 dc.b $96,$fd,$2e,$bd,$f0,$b2,$fe,$12,$cb,$2c,$c0,$40,$fd,$0e,$a0,$5c dc.b $8f,$be,$56,$a0,$a6,$4e,$a2,$51,$82,$b8,$09,$88,$a1,$53,$22,$b8 dc.b $2d,$c0,$82,$f5,$27,$f0,$f8,$0b,$a6,$b9,$c0,$81,$54,$34,$54,$33 dc.b $54,$32,$f0,$ed,$92,$40,$d1,$e0,$ea,$1a,$c0,$82,$54,$37,$c0,$81 dc.b $68,$68,$55,$72,$f2,$58,$aa,$81,$41,$00,$e0,$60,$8e,$b0,$0a,$c0 dc.b $80,$09,$7a,$b0,$0a,$bf,$28,$80,$c0,$40,$c0,$be,$cc,$a3,$cc,$00 dc.b $d8,$0a,$f0,$00,$d8,$0c,$8a,$ba,$f0,$00,$d8,$0c,$f0,$00,$d8,$0a dc.b $88,$fe,$54,$b4,$7f,$fd,$cc,$f4,$f4,$bc,$f4,$bb,$f4,$ba,$f4,$80 dc.b $d1,$7c,$d1,$bf,$50,$c0,$f8,$ff,$fa,$aa,$f8,$ab,$f8,$ac,$f8,$ad dc.b $f8,$ae,$d4,$91,$26,$b7,$f8,$b1,$f8,$fb,$dd,$b2,$f8,$b3,$16,$b0 dc.b $0b,$38,$af,$38,$b0,$30,$06,$b0,$0c,$38,$a9,$f0,$f8,$0e,$d6,$ed dc.b $a8,$f0,$f8,$0e,$a7,$f0,$f8,$0d,$ff,$f8,$13,$f0,$d5,$f0,$f8,$0e dc.b $d6,$f0,$f8,$0e,$d7,$fd,$ff,$05,$6e,$f2,$f8,$09,$f4,$d8,$f0,$d9 dc.b $55,$71,$55,$70,$55,$6f,$50,$dd,$7f,$7f,$f0,$de,$f0,$df,$f0,$e0 dc.b $f2,$18,$00,$f1,$72,$51,$73,$50,$ef,$f0,$d8,$f0,$ff,$f1,$f2,$00 dc.b $d9,$a2,$fe,$1f,$a1,$88,$7f,$70,$a1,$89,$a2,$2c,$a2,$2d,$a2,$1a dc.b $f4,$f8,$c8,$67,$02,$59,$5d,$ef,$a0,$6c,$f0,$fe,$f2,$5a,$00,$d4 dc.b $9b,$f8,$4c,$2d,$00,$2e,$ac,$e8,$0a,$2f,$ff,$6d,$50,$30,$50,$31 dc.b $50,$36,$50,$37,$50,$3c,$40,$df,$1e,$40,$d9,$1b,$ad,$6a,$7c,$e7 dc.b $54,$e2,$8d,$88,$94,$f8,$d4,$a0,$8c,$92,$8e,$ee,$cb,$8f,$05,$19 dc.b $ee,$bf,$2a,$e2,$f4,$80,$88,$0a,$e6,$04,$14,$f2,$e0,$ba,$f6,$ee dc.b $c0,$d3,$94,$f5,$e0,$c0,$d0,$15,$58,$85,$80,$84,$da,$
Early Zone Leftovers
| To do: There's still more leftover bits throughout the ROM that have not been documented. |
Starting at 0xC2148 in the ROM is leftover zone data from an earlier point in development.
Early Casino Night Chunks
Located at 0xC2148-0xC943C is what looks to be chunk data for a very early version of Casino Night zone. The beginning of the data is cut off, but when it is aligned, the shapes of the chunks line up with the chunk data that's normally used in the prototype. They appear to be very early, as none of the data that's used in the prototype matches the chunk mappings.
Early Chemical Plant Remnants
Starting at offset 0xC943C is data for an early version of Chemical Plant, which includes tiles, block and chunk data. They are much different from the used data, and when formatted correctly, line up much more with the layout from the Nick Arcade prototype.
Early Neo Green Hill Zone Remnants
Starting at 0xD602E is a bunch of early data related to Neo Green Hill Zone, including chunks, blocks, and 2 sets of tiles that are identical to those used, with one set being cut off by some chunk data.
Also located at 0x42374 - 0x4265F is an unused BG layout that is similar to the Act 2 layout used in the final game. Overall, the zone appears to have not changed much between these two versions.
Chiki Chiki Boys Data Leftovers
Several remnants exist in various parts of the ROM, though here they're little more than padding. The locations of the data in the Sonic 2 ROM match the equivalent area in both versions of the Chiki Chiki Boys ROM, but with some slight differences suggesting that the remnants here may be from a prototype.
Miscellaneous data can be found at:
- 0x24A30-0x27FFF
- 0x437BC-0x43FFF
- 0x46350-0x47FFF
- 0x48DB4-0x4FFFF
