Gamera 2000 is a single-player action shooter game in which players control a jet fighter to combat alien monsters threatening Earth. The game involves aiming and shooting at enemies from all directions while the jet follows a predetermined path, with players able to call upon Gamera for assistance in combat. In this game, players take on the role of Jack, a star pilot, working alongside Dr. Mikanuki to fend off waves of monstrous enemies across various stages, some of which switch to ground-level gameplay involving a futuristic bike. It stands out with its polygonal graphics, live-action FMV sequences that advance the storyline, and unique gameplay mechanics such as targeting specific weak points on bosses, calling Gamera for homing and charged attacks, and switching between aerial and ground-based combat scenarios.