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New Super Mario Bros.

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Title Screen

New Super Mario Bros.

Also known as: New Chāojí Mario Xiōngdì (CN)
Developer: Nintendo EAD
Publisher: Nintendo
Platform: Nintendo DS
Released in JP: May 25, 2006
Released in US: May 15, 2006
Released in EU: June 30, 2006
Released in AU: June 8, 2006
Released in KR: March 8, 2007
Released in CN: July 2009

AreasIcon.png This game has unused areas.
DevTextIcon.png This game has hidden development-related text.
GraphicsIcon.png This game has unused graphics.
ModelsIcon.png This game has unused models.
ItemsIcon.png This game has unused items.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
DebugIcon.png This game has debugging material.
RegionIcon.png This game has regional differences.
Carts.png This game has revisional differences.

NotesIcon.png This game has a notes page
PrereleaseIcon.png This game has a prerelease article

This page sucks.
If you could make it suck less, that would be awesome.
Specifically: Lots of to-dos to do.

New Super Mario Bros. pretty much resuscitated the idea of all-new side-scrolling Mario games. Not unlike its kinda-sorta-sequel, this game has a lot of unused stuff.

To do:
  • There appears to be some unused minigame variations. Also, create a decent unused sprites and sprite data page/section.
  • The 'bg' folders seem to contain some interesting files.


To do:
Make some of these pages smaller and put them on the main page
Unused Levels
Most are just Mario vs. Luigi stages that didn't make the cut.
Unused Graphics
Including leftovers from Super Mario 64 DS!
Unused Tiles
All sorts of stuff.
Unused Tilesets And Backgrounds
Some 8-bit background fun in here.

Unused Header Options

Mini Mario Physics

Mario uses the otherwise unused animation zero_g_walk and appears to use some sort of variation of the Mini Mario physics (e.g., floating and leg kicking) no matter which powerup he has. However, he can't wall jump and flies huge distances when fired from a Pipe Cannon. When this mode is on while the player is Mini, Mario won't be nearly as floaty. It's unknown where this would have been used.

Start as Mini Mario

Mario will start a stage as Mini Mario. It was probably used for testing, rather than for any real gameplay purpose.

Per-area backgrounds and tilesets

The level header blocks defining backgrounds and tilesets can contain multiple entries. Each area can be set to use different background and tileset entries, which would in theory allow for multiple areas with different graphics in the same level. Unused level 3 uses this.

In practice, the code for this feature is incomplete, and a number of issues prevent it from working as intended:

  • The feature was designed for an older revision of the game which used a different VRAM layout.
  • The code handling backgrounds is inconsistent, reading the several background properties from different entries. This results in broken backgrounds.
  • When changing areas, new graphics aren't loaded, except for the Jyotyu (blocks) palette.

It is also unclear how the support for multiple tilesets would have worked. It seems extra areas would have used tilesets 2 and up. However, in the final game, tileset 2 is occupied by the end-of-level castle.

Unused Sprite Features

Multiple Chain Chomps

The Chain Chomp sprite has support for spawning multiple Chain Chomps attached to the same pole. However, this is disabled, and the game panics if a sprite with more than one Chomp is encountered.

With a USA ROM, setting RAM address 0x02172A78 to 0xE1A00000 after entering a level re-enables the support for multiple Chomps. This can cause quite the mess,as the Chomps tend to overlap each other a lot, and too many of them will cause a slowdown.

Trying to free multiple Chomps attached to the same pole crashes the game.

Unused level 3 features a Chain Chomp sprite set to spawn two Chomps.

Unused Music


Translation Music No.
Ground 63

An early version of the Mario vs. Luigi track. It features a slower tempo and one of the instruments is a steelpan instead of computer generated noise. It's nearly identical to the one heard in the E3 2005 trailer, apart from the wobble and ground-pound sounds that enemies dance to.


Translation Music No.
Underground 53

A watery ambiance track, probably meant to be used in Cheepskipper's or Petey Piranha's boss room.


Translation Music No.
-  ?

The file name indicates that this is a test track. It seems to be a shorter version of the credits theme with less instruments. It cuts off at the first loop.

Unused Sounds

To do:
Should all "race mode" leftovers be put in one place? (including graphics, empty sound files and unused levels.)


Early versions of the game used sound effects straight from Super Mario Bros. for Small Mario jumping and Super Mario jumping respectively.

(Source: E3 trailer, E3 floor demo, 2)



This sound effect played when the player touched the blue midway-point ring seen in early footage.


SE_EMY_GAMA_LAST (Scuttlebug)

An early stomp sound and early coin sound.


Unknown Filename/number

A wobble sound.


Unknown Filename/number

A sound similar to Metal Mario walking/running in Super Mario 64.

Crash Dump Screen

This is why you don't eject the game while it is running.

There is a hidden crash dump screen in the game, similar to screens seen in other DS games developed by Nintendo. To access the crash dump screen, first crash the game (the easiest way to do this is by removing the game card during gameplay), then hold L + R + A + Left, let go, hold Down + B, let go, and finally hold Start + Select.

The top screen shows the contents of the file BUILDTIME and the reason for the crash, while the bottom screen shows a stack dump.

Out of Bounds

Ice Land Blocks


In the bottom right-hand corner of the VS. Ice Land level is a small step of blocks. They seem to be a duplicate of nearby steps in the same level. Why they are here is unknown.

3-3 Walls


In the bottom right-hand corner of Area 2 of Level 3-3 there are two platform sides, which are possibly remnants of an earlier form of this level.

5-3 Flag


In the bottom section of Area 1 of Level 5-3 there is a flag, which is possibly a remnant of an earlier form of this level.

Unused Text

Build Date

Every version of the game has a plain-text file called BUILDTIME in the root of the ROM filesystem:

US Europe Japan China
UROM2006-03-29 09:48:19nitro-mj EROM2006-04-26 14:20:08nitro-mj JROM2006-04-04 19:07:45nitro-mj CROM2009-04-27 20:29:28nitro-mj
US demo Europe demo (Rev 0 & 1) Korea
UROM2006-04-07 11:29:13matoba_t EROM2006-04-27 11:13:34matoba_t KROM2006-12-27 14:32:43matoba_t

matoba_t refers to the game's Assistant Director, Taku Matoba, nitro is the DS's code name. mj is likely a codename for New Super Mario Bros. New Super Mario Bros. Wii uses this for part of its save-files name.

The only difference in the second version of the European demo is a slightly different header that causes DSi consoles to boot straight into the game when the console is switched on, skipping the System Menu. These were used for DSi XL demonstrations, to prevent users from accessing anything other than the game. The rest of the ROM is exactly the same.

Can't Save

You can't save here.
Do you want to quit?

/script/game.bmg/msg 7

The game.bmg file is the world map text.

File Names

  • The internal name for the Underwater music is water3, which suggests that either there were once three different underwater themes or this is the third revision of the theme.
  • Strangely, the firebar's graphic file is named firebar1.nsbmd.
  • SE_PLY_FB_FROM_LUIGI and SE_PLY_FB_FROM_MARIO play when certain letters in the Staff Roll are touched. Unlike the other sounds effects, they are not used outside the credits. Judging from their file names, they would have been used in VS Mode when a player was hit by their opponent's fireballs. In the final game the "Mario and Luigi collision" sound is used.
  • Unlike all the other bosses, the Mega Goomba's sound directory, huge kuribo, does not have boss at the beginning or end of the name. In prerelease versions of the game, Mega Goombas appeared as an enemy as well as a boss.
  • The internal name for the Star Coins is DRAGON_COIN, a la Super Mario World.
  • Snailicorns are called bully internally, possibly a reference to the similar "Bully" enemies of Super Mario 64.

Empty Sound Files

There are also some empty or duplicate sound files with interesting filenames:

  • SE_PLY_WARP: Possibly related to the removed warp block that warped the player's opponent to their current location, which appeared in prerelease versions in VS Mode.
  • SE_EMY_FUWA_FUMU (Stomp Spindrift), SE_EMY_FUMA_FUWA_L (Luigi): This would play when the player stomped on a Spindrift, an enemy from Super Mario 64 that is only seen in prerelease screenshots.
  • SE_SYS_VS_COUNT, SE_SYS_VS_COUNT_LAST: Likely a countdown.
  • SE_PLY_PLAYER_FUMU (Stomp) In early versions of the game, players could squish each other by jumping on them, like in New Super Mario Bros. Wii.
  • SE_VOC_MA_GET_ITEM, SE_VOC_MA_GET_ITEM_2 Probably would have been used when Mario got a powerup in a similar fashion to the Super Mario Advance series, where Mario says "Just what I needed!" when getting a powerup.
  • SE_EMY_DOWN_BY_PUNCH, SE_OBJ_BLOCK_KICK, SE_PLY_KICK, SE_PLY_PUNCH - In the E3 floor demo version of the game the player could punch and kick in Super, Fire or Mega forms with R. In the final game, the L & R buttons scroll the camera left and right.
  • SE_OBJ_PUFF_MUSH In early versions of the game you had to push Mega Mushrooms out of ? blocks by hitting the block multiple times.
  • SE_PLY_LAND The game was more Super Mario 64-esque in early versions; the player would make a sound when landing.
  • SE_EMY_UTSUBO Small Unagis don't make a sound when swimming, but the big ones do.
  • SE_EMY_BUBBLE_IN Podoboos don't make a sound when they enter lava, but they do when they exit it.
  • SE_OBJ_UKISHIMA_S, SE_OBJ_UKISHIMA_L "UKISHIMA" means a floating mass or island mirage.
  • There are files with names suggesting that they were to be used when the camera zooms in and out of in the world map.

Unused Entrance Types

Each level has an entrance type setting which affects how Mario enters the area (exit from a pipe, jump from bottom of the screen, etc.). There are several entrance types that are not used by any levels.

  • 2: The player spawns in the tile above where the entrance is placed.
  • 8: The player spawns in the tile above where the entrance is placed, then jumps.
  • 12: Like Entrance 2, the player spawns in the tile above where the entrance is placed.
  • 13: Like the used "Exit from door" entrance, the player spawns coming out of a 3D door which disappears to reveal whatever is behind it once it has closed. In this instance, though, the player and door spawn in the tile above where the entrance is placed.
  • 15: Like the entrance used when the player first spawns or re-spawns after dying in Mario vs. Luigi mode, the player comes out of a pipe which grows out of the ground and then fades away. With this one, however, the player appears to be walking out of a door while coming out of the pipe. When the player spawns from this entrance after exiting from another area, the player looks like they are coming out of a doorway but without the door. An earlier version of this entrance can be seen in the E3 2005 Demo version.
  • 16: Entrance 16 is a duplicate of Entrance 15.

Unused Behaviors

  • Most sprites can be killed by being touched by Invincible or Mega Mario or getting the block they are standing on hit from below, even if the powerups are not usable in the level or the enemy doesn't appear on top of a block. The only boss this counts for is Bowser Jr., who can be knocked out of the level without being defeated via a block.
  • Pokeys can be defeated by performing a drill spin on them by using a tornado or spin block. The only levels that actually contain both a Pokey and a tornado are Unused Levels 4 and 5.
  • Tight Rope: Enemies standing on a tight rope are bounced in the opposite direction when the rope is stood on by the player.

Regional Differences

To do:
Bug, level and collision code differences between the J, U, E, C, K, E-Demo (E-Demo-2 only has a header difference - see Build Date section), U-Demo and possible J-Demo (User:Kobosuke#New Super Mario Bros. - undumped) versions.
  • There's more then what's found here start Here.

Title Screen

International Japan Korea China
Guess Vs. Mode isn't that important The trademark is now registered Guess it took longer to get to Korea Wonder what they were doing for three years

The trademark wasn't registered quite yet in the international release. The Japanese, Korean, and Chinese versions each have a subtitle (in their respective languages), while the Korean version exclusively has a copyright date of 2006-2007 instead of just 2006. The Chinese version has the 2006 copyright plus a 2009 iQue copyright; this is because iQue released it in China.

Level Differences

  • World 6-Castle - in the US version, the tall room with the boss door is located within the main level file. The Japanese, European, and Korean versions moved the room into its own file, which is a bit odd since there's really no reason to do so and nothing was added or removed.