Ben 10 for the Sega Genesis is an unlicensed (Unl) game based on the popular cartoon series. Unlicensed games often lacked official authorization, sometimes leading to simplified or altered game design. While details about this specific version are scarce, it likely featured Ben 10's ability to transform into various alien creatures with unique powers.  Gameplay probably revolved around action and platforming,  following the character's adventures from the show.  The lack of official licensing often resulted in these games having limited distribution and recognition.

Ben 10 (Unl)

Beavis and Butt-Head (USA)