Play Juuouki (Japan) [En by Aka v1.0] (~Altered Beast) Online

Juuouki, known in English as Altered Beast, was released for the Nintendo Entertainment System by Sega. It arrived during a period when many arcade ports struggled to capture the energy of their source material on home consoles. The game stands as a straightforward, if somewhat rough, adaptation of the arcade beat 'em up.

You control a warrior resurrected by Zeus to rescue his daughter from the underworld. Moving screen by screen, you punch and kick through waves of mythological creatures. Defeating certain enemies releases floating orbs; collecting three transforms you into a powerful beast, like a werewolf or dragon, with unique attacks. The objective is simple: reach the end of each stage and defeat the boss. The pacing is brisk, but the difficulty is steep, with limited continues and unforgiving enemy patterns. It feels like a race against your own limitations, where every hard won advance comes with a sigh of relief.