EASILY the hardest trophy in the game. You have to complete this 2-D, 8-Bit action platformer without taking any damage from anywhere in the game: bosses or regular foes. Save after every "perfect" level, don't lose a single life and don't worry about gathering Energy tanks ... you can't use them. But you CAN use Weapon tanks should you run low on weapon power (confirmed by Linglingzors). My advice would be to either use Proto Man for his shield and slide abilities or "Bass" (DLC character) for his directional and rapid-shot weapons. You can earn this trophy by playing as either Mega Man, Protoman or Bass. Best of luck!!