|Signs of nearing||Crazy and random sound clips|
|Theme song|| Campaign Mode Final Boss (Big Glasses and Einstein)
Rick Astley (Afro and Slick)
|Partners||4 Crack-Life Scientist Variants|
Dr. Crackger is a boss faced in Slender Fortress, exclusive to Demon Hamster's server.
Dr. Crackger is a crack version of Richard Trager. One of them has a big afro and one variant has giant glasses. There is also two other hatless variants. They wear an unusual black tuxedo while he holding a gian syringe and has unusual faces. They use the sounds from the mod, "Crack-Life".