COLLIDER is an addictive and fun physics-based game featuring 25 intricate levels of play and hours of dynamically generated music.
An auto-save feature automatically saves your progress so you can suspend the game and continue playing where you left off at a later time.
Place the particle balls above the line and press play to let physics do it's work.
Balls of opposite polarity annihilate eachother. To clear the level there should be no particle balls remaining.