Evade the swarming Roids by moving your avatar around the screen. If you get hit by a 'Roid, you'll lose a pixel of the player. If you hit the boundary walls, you'll lose more player pixels. It's game over when all the pixels of the player are destroyed - how long can you last? Hit the colourful 'Roid Destroyer to kill 'Roids with its pulse wave - earning Regen pixels.