Cosmic Spacehead is an adventure game made by Codemasters. It is an updated version of Linus Spacehead's Cosmic Crusade on the NES. While the NES version in Europe is a renamed version with an extra mini game and the Master System version is an improved version in regards to controls, the other versions had different graphics giving it a 1950s vibe.
This tool can be used to export graphics from the Genesis version of the game. While it doesn't extract all the sprites, it extracts most of the backgrounds and the cutscenes.