By Design Games has released
Make Bouncy Bouncy, a new casual game for Mac OS X and Windows. It costs $19.95, and you can play a demo version online.
Make Bouncy Bouncy is a 3D puzzle game of a different sort. You control a cube that has to make its way through mazes of interconnected platforms floating in space. The cube bounces, and in between each bounce you can direct the cube to jump. The game can be controlled with one hand and is suitable for the whole family, according to the developer.
The game requires Mac OS X v10.2.8 or later.