TetriCycle is Tetris projected onto a cylindrical surface. Rotate the cylinder left/right such that the descending piece falls into place.
TetriCycle is freeware, can be distributed freely and should never be charged for.
Changelog:
v0.2b
* 2nd Release: 12/14/09
* Added support for Nunchuck + Wii Remote and Wii Remote Horizontal.
* Added support for up to 4 players.
v0.1b
* Initial Release: 12/6/09
* I consider this release "pre-alpha", as it's not yet feature complete, but homebrew tends not to follow the typical product development cycle; thus, this is the first "beta" release