Here is the full list of all 47 Resident Evil 0 achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Put on Team Wesker costume.
Obtain all weapons.
Kill 50 enemies with the Death Stare at full charge.
Finish the game without saving.
Finish the game without using a recovery item (including Green Chemicals).
Finish the game without combining herbs.
Defeat all bosses except Centurion using Rebecca.
Read all files.
Defeat 16 bats in the church.
Get picked up by the Infected Bat.
Combine every type of herb with each other.
Collect all of only one color of Leech Charms.
Defeat all enemies in Leech Hunter.
Finish Leech Hunter with rank A.
Finish Leech Hunter with rank E or above.
Play Leech Hunter.
Finish the game on Hard difficulty.
Finish the game with rank S.
Create a Custom Handgun.
Complete the treatment plant.
Finish the game without using a First-Aid Spray.
Defeat Queen Leech.
Obtain all keys and use them all.
Defeat the Proto Tyrant.
Complete the factory.
Fight off the Proto Tyrant.
Shoot down a Hunter or an Eliminator while they are jump attacking in the air.
Complete the laboratory.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Defeat Infected Bat.
Complete the training facility.
Play the piano using Rebecca.
Defeat a zombie by stomping on them.
Use a Green Chemical.
Defeat Mimicry Marcus for the first time only using a knife.
Defeat an enemy with a knife.
Break free of a Cerberus while they are biting you or trying to push you down.
Try to push something heavy with Rebecca.
Defeat Centurion.
Destroy a zombie's legs.
Change into a costume.
Attack an enemy to save your partner who is grappling with that enemy.
Complete the train.
Defeat an enemy by burning them.
Create a Molotov Cocktail.
Defeat Stinger.
Defeat an enemy with a critical-hit headshot.