You control the green blob. Arrow keys to move and jump. Space to shoot bullets. Go to the blue portal to win. Avoid red objects.
Collect power-ups to enhance your character. Green = Jump boost. Blue = Speed boost. Grey = Heaviness. Yellow = Flight (Space+Space)
On the bubble level, jump on top of the bubble to get to the top right corner. On the Yellow power level, click space repeatedly to fly. If the flight runs out, go to the bottom and jump into the red. The buttons in the corner are for Mobile Devices. Touch them to move, and use the dot button to fire.