S1·E28 Dr. Jekyll and Mr. Huxley

Presley and the Mummies are at school to get the stone obelisk that brought Chontra in Good Bye Mr. Cheops. Presley gets stopped by Mr. Huxley, who tries out this ""science project"" and gets changed into ""Milton the Magnificent"". He gets laser powers and a whole new personality. Milton steals a car, robs an Automated Teller Machine, and heads to the Albatross Pub where he hands out money freely. He likes his changed form and wants to make the effects permanent. Ja-Kal accidentally gets zapped by the obelisk and becomes ""Jeky the Great"". Milton and Jeky go for a joy ride taking Presley with them and they battle it out on a runaway cablecar. The obelisk ends up at the bottom of the Bay.