Tuxedo Knux (also spelled Tuxedo Knucks) was an alternate universe counterpart to Knuckles the Echidna from the Luna Zone. After Ivanna Robotina escaped their zone and briefly attacked Mobius Prime he pursued her along with Sally Moon and Chibi Rose. Following a brief scuffle he rendered Robotina unconscious using one of his roses, and returned her to his native zone with the others. (SSS: #8)
- Tuxedo Knux is an obvious parody of Tuxedo Mask, a romantic interest for Sailor Moon from the popular anime series Bishoujou Senshi Sailor Moon. The fact that Knuckles was cast in the role was obviously intended for comedic effect, given Sonic's romantic feelings for Sally and his rivalry with Knuckles.