🎮 Play Juuryoku Soukou Metal Storm (Japan) Online (NES)

Juuryoku Soukou Metal Storm is the 1992 Japanese Famicom release of Irem’s acclaimed gravity-defying action platformer. Unlike the earlier North American version, this edition features the M-308 Gunner in its original white color scheme and restores the game’s cinematic intro, cutscenes, and a unique ending. As a run-and-gun masterpiece, it challenges you to master the ability to flip gravity at will to navigate complex stages, dodge fire, and defeat massive mechanical bosses.

In the browser, use the Arrow Keys to move your mech. Press Z to shoot and X to jump. To flip gravity and fall to the ceiling (or back to the floor), use X in combination with the Up or Down arrows. Press Enter to start or pause the game.

Tips: You can shoot while in mid-air during a gravity flip, which is crucial for taking out turrets positioned in tricky spots. Additionally, your mech has a brief moment of invincibility during the flip animation—time it right to phase through otherwise unavoidable enemy projectiles.