We have 1 cheats and tips on Xbox 360. If you have any cheats or tips for Death by Cube please send them in here. You can also ask your question on our Death by Cube Questions & Answers page.
At the 'Upgrade' screen enter the following codes to unlock the corresponding character.
Unlock LOSS - Black Robot:
Hold LT and press RT, RT, X, Y, X.
Unlock SELIS - Pink Robot:
Hold RT and press LT, Y, X, LT, 'Start'.