Rock n' Roll Racing is a racing game released for the Sega Genesis in the USA. The gameplay would likely be identical to the European version (detailed above), featuring fast-paced racing, power-ups, and diverse vehicles.  Any regional differences are minor and would require deeper investigation to identify. The developer remains to be confirmed but it is a title commonly identified with the Sega Genesis library.

Rock n' Roll Racing (USA)

Robotnik Returns 2 SHC2015