It was released in 2009 to celebrate the show's 10th anniversary.
SpongeBob is jellyfishing. Help him collect as many jellyfish as possible. Use the jellyfish net and click to capture the jellyfish. There are also golden jellyfish. Capturing a golden jellyfish will temporarily give SpongeBob a large golden jellyfish net which helps him collect even more jellyfish. Just make sure that the jellyfish do not touch SpongeBob or else the player will lose a life. If all lives are gone, the game ends.