Choose to be green or orange. When the maze appears, the color you selected will be the one you "drive." To complete the level, get both of your blobs to the portal at the same time before time runs out.
Watch out for obstacles and enemies. If one of your blobs gets trapped, the other blob can shoot him once, releasing him. Ghosts cannot be killed, and if you touch one, it will swap your characters.
Arrows = Move
Space = Shoot
Key = Eliminates walls that have a key symbol on them
Snowflake = Freezes enemies
Green Arrows = Extra speed
Plus Sign = Extra points
Clock = Extra time