Not really sure how to explain this one. How about, Fun.
Try to copy the pattern in the top left corner. Hurry, it dont last.
Can you free the balloon?
Help your robot get the ship parts to complete each level.
Construct towers and solve physics based puzzles as you guide your blobs into the exit.
Set your path, unlock lasers, do not touch walls, be cautious about other machine paths.
Destroy all the zombies in each level by strategically using brains to lure them to their deaths!