Plankton:To unlock Plankton, complete all nine Quest levels.Achievements:ACHIEVEMENT – HOW TO UNLOCKQuest Beat (5 points) – Beat a Quest Mode game.Fast Track (30 points) – Beat all Time Trial levels.Party Animal (15 points) – Win a multi-player game.Jellyfisher (15 points) – Defeat 100 Jellyfish.SpongeBob ThousandPants (20 points) – Collect 1000 underpants.Wide Awake! (5 points) – Break out of a Stun.No Pants! (10 points) – No pants in a multi-player game.It (15 points) – Be “it” for 50 seconds.Superhero! (15 points) – Use Super Moves 25 times.Masterful (30 points) – Beat Quest mode with all five characters.Clumsy! (10 points) – Fall out of the level 50 times.Prospector (30 points) – Collect all Gold Medals.