Biker Mice from Mars (2006) (2006)

S1E6 It's the Pits

The Biker Mice find themselves drawn into a hidden underground realm concealed beneath a Rump Mini-mart. There, they face off against one of their most formidable foes, the Pit Boss. To their surprise, they also come across a familiar group of adversaries they haven't encountered in ages: Lawrence Limburger and Dr. Karbunkle!