Mega Man ZX Advent

Unlockable: Boss Battle Mode

To unlock Boss Battle Mode, beat Boss Survival Mode once through.

Unlockable: Boss Survival Mode

To unlock Boss Survival Mode, finish the game with both Grey and Ashe.

Unlockable: Expert Mode

To unlock Expert Mode, beat the game on normal difficulty.

Unlockable: Quiz & Minigames

To unlock Quiz Advent and Mega Man Minigames, beat the game once through with either character. Quiz Advent is a quiz game, while the other is an "old-school" imagining of ZX Advent.