A puzzle collection to be released in Japan in 2003, and no current plans for release elsewhere.
This game features some of the best puzzle games of all time, up there with Tetris and Puyo puyo:
One of the coolest things about this package is that is will feature 4 player competitive play for all these games.
It will also be possible to download any of these three games to your Gameboy Advance through the link cable. (Essentially ports of the old NES versions.)
It is unknown whether this game will feature new artwork, music, or mixed gameplay (a la Tetris & Dr. Mario)