Rubehouse is a classic chain reaction puzzle game with a lot of eye candy.
As with most chain reaction games, your job is to destroy as many particles as you can by initiating a single detonation. Any particle that it hits will explode, causing a chain reaction of explosions that take out any nearby particles. You need to destroy a certain number of particles for each level.
As levels progress, there are more and more particles, and you must destroy an ever-increasing percentage of them just to achieve a bronze star and unlock the next level.
Higher percentages will unlock silver and gold achievements.