If you enjoy the thrill of discovery and would rather figure it out for yourself, then don't read any further. If you get stuck, come back and learn how to play below.
When the game begins, a ring of colored creatures is revealed below the surface. Click on a creature to connect (or disconnect) its nose to (or from) the pool in the center. The characters at the top of the screen will think of colors. Every couple of seconds, the game checks to see if the colors of the creatures you have connected match the same colors being thought of above. If you're right, the bar at the bottom increases. If wrong, it decreases. It gets harder as more characters appear on top and start thinking of multiple colors. Also, you have to make sure all the creature noses are disconnected if nobody is thinking of a color.
Cheers to pokemega32 for sending this one in! =)