Aliens - Alien 2 (Japan) (Proto) (1986-12-15) represents a prototype version of a game, likely never officially released, found its way into the collector's market. This prototype, dated December 15, 1986, offers a glimpse into the game's development before its official (or possibly non-existent) release. It likely involves fighting aliens, featuring side-scrolling or other action-oriented gameplay common for NES games of the period. Given its prototype status, substantial differences from any potential final release are expected.

Aliens - Alien 2 (Japan) (Proto) (1986-12-15)

Alien Syndrome (Japan)