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Game Boy Color Promotional Demo

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Title Screen

Game Boy Color Promotional Demo

Developer: Nintendo
Publisher: Nintendo
Platform: Game Boy Color

GraphicsIcon.png This game has unused graphics.
MovieIcon.png This game has unused cinematics.
MusicIcon.png This game has unused music.
SoundIcon.png This game has unused sounds.
DebugIcon.png This game has debugging material.

The Game Boy Color Promotional Demo was a cartridge used in store kiosks to show off the GBC's amazing new capabilities. It contains several tech demos, as well as colorized mockups of existing monochrome games.

Oh, and did we mention it's an excessive hack of Wario Land II?

Download.png Download Game Boy Color Promotional Demo
File: Game Boy Color Promotional Demo.rar (89 KB) (info)

Debug Menu

Gameboy Color Promotional Demo Debug Menu.png

GameShark code 0102ADC2 or Game Genie code 020-37B-E6E will activate a debug menu for viewing all the demos, including several unused ones (see below). Up and Down moves the cursor, while A activates the selected item.


Game Boy Color Promotional Demo Unused Cube Polygon.png

Actually a second cube demo. Apparently, Nintendo wanted to further show off the Game Boy Color's ability to "render" polygons, but this was cut from the loop for unknown reasons.


Game Boy Color Promotional Demo COLOR 1.png

An unused intro which was replaced by the fade-out one.


Identical to COLOR 1.

(Source: nensondubois)

Wario Land II Music/Sounds

The entire soundtrack, including sound effects, is present in the ROM. Game Genie code ??5-65B-3B6 will play any of the songs during the demo, while Game Genie codes BF8-46A-E6D 008-3FA-E6E ??8-44A-802 will play any of the sound effects at the Nintendo logo.

(Source: nensondubois)

Link's Awakening Sprites

Promotional Demo DX Release
Game Boy Color Promotional Demo zelda.png Zlttp us v1.png

The sprites used for Link's Awakening in the Promotional Demo are a bit different than the ones used in the eventual Link's Awakening DX:

  • The animation of a dying monster is different from the one in DX.
  • The Moblin's arrows are green in the Promotional Demo, but brown in DX.
  • The sign is missing a shadow, as well as shading on the sign's top and bottom.
  • The color used for the borders of the trees is cream in the Promotional Demo, but green in DX.
To do:
Comparison images.

Unused Graphics

Nintendo copied whole ROM banks and used what they needed for the demo, so consider what is used in the actual game to be unused in the demo.

Not Compatible with GB/SGB


When loaded on a Game Boy or Super Game Boy, the game will throw up a screen saying that you need to use a Game Boy Color. At the same time, some unused tiles are loaded into VRAM. This screen is a modification of the warning screen from Wario Land II for GBC, which is triggered when a save from one system (e.g. GBC) is used on another (e.g. DMG). The tileset, with the light outline, is the same.

A pointing gloved hand. A leftover from Wario Land II, for when the warning screen would offer to erase the save, and proceed with the game.

Possibly a placeholder icon.

The only tiles used are the - tile and the gray background tile, leaving the numbers, other punctuation, and alternate background colors unused. The dark background tile square was used as a menu bullet point in Wario Land II.

Tetris DX

All of these unused graphics unless noted appear in Tetris DX as well.

Title Screen

There are a few unused graphics and a ton of placeholders loaded at the title, so there may have been further plans for the title screen.

GBC Demo Tetris DX Unused J CHR SET.png
This early idea to display Tetris DX in Japanese is the only remnant left.

GBC Demo Tetris DX Unused N COPYRIGHT.png
This copyright string was likely going to be placed at the bottom of the ENTRY.


What appears to be an early border design for the Game Over screen. The second one appears to have an unfinished shadowing effect. The palette is a guess, as one has not been assigned.

Tetris DX Unused Game 1.png Tetris DX Unused Game 2.png

(Source: nensondubois)