Chuck Rock, released for the Sega Master System in Europe, is a platformer known for its unique premise. It cast players as a caveman who must navigate levels, evade enemies, and solve environmental puzzles. The game is characterized by its prehistoric setting and the protagonist's unique abilities.  While precise development details are not widely available, it's recognized as a fun and challenging platformer for the Sega Master System.  The release in Europe showcases its appeal to the European audience.

Chuck Rock (Europe)

Choplifter (Japan) (Proto)