Most Information and Bio picture are from Xbox360Achievements.org and its posters xRogue 5x and Fizzmatix. Original thread can be found at this location.
Rotten Slimer is a Most Wanted Ghost in the online multiplayer mode of Ghostbusters: The Video Game. He is a malevolent variation of Slimer and can be fought if the player captures 50 Slimers in all levels( not including Slime Dunk jobs). He appears in all levels.