Alternate character color
At the character selection screen, hold Select on controller two and press X, Circle, Square, Triangle, L1, L2, R1, or R2.
Play as Neco and Modoki
Beat the game with Nox and Eve.
View Neco's demo
Beat the game with any character, then hold Select + Start to restart.
Each time you beat the game under one of the three difficulty
settings, two additional levels become
available, for a total of six new levels.