Evildoers, and everyone else, beware! Mermaidman and Barnacleboy have opened their locker of memories for SpongeBob and Patrick (MISTAKE!), the Dirty Bubble, Man Ray, The Atomic Flounder and The Sinister Slug have gathered in Bikini Bottom, Mrs. Puff's working the summer at the Krusty Krab, SpongeBob's attempting to…