Collider

[Oblivion2031]

Collider
A physics-based puzzle game where your goal is to get rid of all the negative and positive balls on the screen. In order to delete a ball, you must cause it to collide with a ball of the opposite group (Positive - Negative, Negative - Positive). There is a tutorial on the main menu if you want more information.
Link - http://www.freewebarcade.com/game/collider/