Game Play: Click in the tick mark area and drag onto the game area - this will determine the launch speed and direction. The particle will fire off when you let go of the mouse button. If the little particle collides with a big one, the game is over. If it hits along right or bottom edges of the game area, you score!

Level: The total number of large particles. Blue particles repel and yellow attract.

Scoring: Four different scores are calculated: 1) Score - how far along the bottom or right edge you get the small particle to hit, 2) Time - how long the particle is in play on the game area, 3) Distance - distance that the small particle travels, 4) Total Score - Score multiplied by Time. The highest Total Score, Time, and Distance are kept for each level.

Time Scale: Speed of the action. Doesn't affect the score, just allows you to see your smooth moves in slow motion.