Autoreplace Machine Keyubutera (Cubeterror)

ORIGIN:
A fantastic Cube Machine is built that automatically replaces any broken or worn-out item with a brand new one, anyplace in the world. It is even programmed to replace itself if it ever becomes damaged. People become used to having bright and shiny new things all of the time as a result. A savage band of out-of-work Junk Dealers attack the Cube's central headquarters and infect the Cube with a robot virus. The Cube becomes Keyubutera and begins replacing items, all around the world, with completely different items. During battle, Keyubutera becomes damaged and engages its Self Replace circuit, but since it can now only replace with different items, it becomes a harmless beverage dispenser.

ABILITIES:
Item Replace: switches an item with a totally different one
Self Replace: if damaged or weakened, replaces self with new self (but this backfires, see story)
Boof Cannons: fires explosives from cannons on head