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