Kill 50 enemies with the Death Stare at full charge.

Obtain all weapons.

Finish the game without saving.

Collect all of only one color of Leech Charms.

Finish Leech Hunter with rank A.

Defeat all enemies in Leech Hunter.

Complete the treatment plant.

Obtain all keys and use them all.

Complete the factory.

Complete the laboratory.

Defeat Infected Bat.

Complete the training facility.

Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.