Play Shin Megami Tensei Devil Children : Aka no Sho Online

Shin Megami Tensei Devil Children: Aka no Sho came out for the Game Boy Color in 2002, developed and published by Atlus. It was part of a pair of games alongside Kuro no Sho, released around the time handheld RPGs were really leaning into monster collection and darker, more complex stories than you might expect from the hardware.

You control a young protagonist navigating a Tokyo overrun by demons, talking to them to recruit allies or provoke fights. Your main goal is to explore the city screen by screen, solve environmental puzzles, and gradually push back the supernatural chaos. Key mechanics include negotiating with demons to build your party and fusing them together to create stronger, more specialized monsters. The pacing is deliberate, with a fair amount of backtracking and random encounters that keep you managing resources. It feels like a thoughtful, slightly demanding adventure where every new demon partner changes your options in battle.