Neverball

Neverball is a 3D platform game similar to Super Monkey Ball. Tilt the floor to roll a ball through an obstacle course before time runs out. Neverball is part puzzle game, part action game, and entirely a test of skill. It is currently available for Windows platforms, Mac OS X, Linux, FreeBSD, Dreamcast, AmigaOS 4, iOS and Maemo. Neverball is free software under the terms of the GNU General Public License (GPL).