Ninja Assemble - Rebirth Mania is a free 3D fighting game based on the concept of "ninjutsu", a branch of martial arts that combines physical skills, spiritual knowledge, and the arts of the ninja. The game is set in the fictional village of Kuroshio, where the player will be able to assemble a team of heroes to fight against evil enemies. Each character has unique abilities and skills, which will allow the player to become the ultimate champion.

The game has been designed to be played by users of all ages, and will allow them to have a fun and engaging experience.