Play Brain Drain (Japan) Online

Brain Drain was a Japan only Game Boy release from 1990, developed by Aicom and published by Yojigen. It arrived during a period when the handheld was becoming a serious platform for puzzle games, offering a more cerebral alternative to the action titles that dominated the market.

You control a small, block pushing character through a series of single screen rooms. The main objective is to clear a path to the exit in each stage by maneuvering crates onto specific switches. The signature mechanics involve routing these crates through teleporters and onto conveyor belts, where their direction of travel is predetermined and often complicates your plans. The pacing is deliberate, and the difficulty escalates quickly as these systems intertwine; one miscalculation can force a complete reset of the puzzle. It feels like a constant, satisfying battle against the level's own internal logic.