Get each alie to its ow colored exit at the ed of each level. But first you'll eed to get the key to ulock the level by gettig the required umber of colored diamods o each level.

Cotrols:
Keyboard - WAD or arrow keys to move ad jump. R key to restart level.
Cotroller - D-Pad/Left Stick to move A to jump B to restart level.
Touch - Use o-scree buttos to move ad jump.

Get the two aliens to the end of each of the 30 challenging levels. Maybe not as easy as you think because the aliens are on opposite sides (one up one down) of the landscape and you control both at the same time.