Choplifter is an early prototype version of the game found on the Sega Master System's Japanese release. Prototypes often differ significantly from final versions. While the core gameplay likely involved the same helicopter rescue mission found in the final releases, its mechanics, graphics, and even the overall game structure may differ considerably. Information on the game is limited, and its discovery may be a noteworthy finding for Sega Master System collectors.  The prototype reflects a snapshot of the game's development process, offering insights into the creation process.

Choplifter (Japan) (Proto)

Championship Hockey (Europe)