If you wanna play as the final boss, DoomBox, in offline mode (Training/Challenge), in character select use the code:

Sonata > Raptor > Switch > Candyman > Raptor > Dice > Latch

You're Welcome.

If you wanna play as the final boss, DoomBox, in offline mode (Training/Challenge), in character select use the code: Sonata > Raptor > Switch > Candyman > Raptor > Dice > Latch You're Welcome.