Computer Games: Maniac Tetris
Maniac Tetris
Dozens of Tetris variations placed under a single interface. Features multi-player support, special ethnic characters and music for each level, and a "Gauntlet" feature that lets you play sequentially through all stages. Currently I have roughly 12 "sections" planned, each with 4 "stages", each with 10 "levels". That makes for roughly 500 levels as of right now!
Maniac Tetris
The Play Area:

Similar to the original Tetris, this has many familiar elements. A new twist is that the level observer (the Russian with the funny hat, in the original) changes at each stage. Additionally, there is a secion at the bottom of the window where, in multiplayer mode, you can watch a miniture view of how other people are doing.
Special Weapons:

Here is a sketch of one of the section's, stage's special weapons.
MncTrt
CmpGms
Ideas
MotN

WDATM?