This is a fan translation patch of the Japanese game Majuu Ou for the Super Nintendo Entertainment System. The "En by Aeon Genesis v1.01" indicates a specific translation patch created by Aeon Genesis, likely making the game accessible to English-speaking audiences for the first time.  The gameplay would closely resemble the original Japanese version, but players now benefit from understanding the narrative and in-game text.

Majuu Ou (Japan) [En by Aeon Genesis v1.01] (~King of Demons)

Majin Tensei II - Spiral Nemesis (Japan)