Rengoku

Rengoku is a mobile phone version of Rengoku: The Tower of Purgatory.

The players take control of the cybernetic robot G.R.A.M., searching for a meaning behind their existence in a world where robots have been imprisoned in a giant tower after their mission to protect humanity ended.

There are seven levels to explore where the player takes on the other androids left stranded, endlessly fighting each other. The player can equip up to six different types of weaponry, and customize their cyborg's head, arms, torso, legs and weaponry.

Rengoku was distributed through the i-mode mobile internet service.