Quatros is a decent Tetris clone originally developed for a certain contest, in which all entries must be restricted to a Gameboy handheld window size and color scheme.

Most of the necessary features have been included, such as a proper pause button and a key for instant piece drop. Just rename and drop any mp3 file into the game folder to set it as your choice of background music.

Name: Quatros
Developer: Markus Rosse
Category: Puzzle
Type: Freeware
Size: 1MB