Tetris (Game Boy Color)

This page details bugs of Tetris (Game Boy Color).

Monochrome Graphical Issues#

This page or section needs more images. There's a whole lotta words here, but not enough pictures. Please fix this. Specifically: Compare more of the game's screens/modes.

This needs some investigation. Discuss ideas and findings on the talk page. Specifically: Try to figure out exactly *which* version of the game introduced this screen

Though the game was designed for color hardware, versions of the game up to v1.3 had no lockout screen to prevent the player from running it on an original monochrome Game Boy model. Anything that relies on the Game Boy Color's additional VRAM will be glitched, as seen below.

Game Boy	Game Boy Color

Game Boy	Game Boy Color

Game Boy	Game Boy Color

This situation would have been avoided in many cases by using a cartridge shell which physically blocks the power switch on an original monochrome DMG Game Boy. However, for this release a standard DMG-compatible cartridge shell was used.

In 2025, the v1.4 update was released that introduced a proper lockout screen: