Help Spongebob to catch as many jellyfishes as possible, but avoid their sting! If they sting you 10 times you lose. Capture the blue jellyfish to complete each level, and try to finish the 3 levels of the game. You earn 50 points for each pink jellyfish, 100 for each green and 500 for the blue. You lose 50 points each time one of them stings you.
Arrow key up to jump, arrow keys left/right to move to left/right, space bar to try to capture the jellyfishes.