Clear the game in under an hour.
Defeat 1000 enemies.
Make it to a boss room without getting damaged.
Defeat the 8 bosses without your helmet on.
Clear the game without dying.
Clear the game without getting damaged.
NO COFFEE BREAK
Clear the game without using any energy, mystery, or weapon tanks.
Clear the game on HARD.
Clear the game without continuing.
Defeat the 8 bosses with just your default weapon.
Clear the game once.
Defeat one of every type of enemy.