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.
Finish the game on Hard difficulty.
Put on Team Wesker costume.
Kill 50 enemies with the Death Stare at full charge.
Defeat all bosses except Centurion using Rebecca.
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).
Obtain all weapons.
Finish the game with rank S.
Finish the game without saving.
Collect all of only one color of Leech Charms.
Defeat Mimicry Marcus for the first time only using a knife.
Finish Leech Hunter with rank A.
Defeat all enemies in Leech Hunter.
Read all files.
Use a Green Chemical.
Finish Leech Hunter with rank E or above.
Defeat 16 bats in the church.
Play Leech Hunter.
Complete the treatment plant.
Defeat Queen Leech.
Obtain all keys and use them all.
Defeat the Proto Tyrant.
Complete the factory.
Fight off the Proto Tyrant.
Complete the laboratory.
Combine every type of herb with each other.
Defeat Infected Bat.
Get picked up by the Infected Bat.
Complete the training facility.
Play the piano using Rebecca.
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.
Try to push something heavy with Rebecca.
Defeat an enemy by burning them.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Create a Molotov Cocktail.
Defeat Centurion.
Change into a costume.
Destroy a zombie's legs.
Complete the train.
Defeat an enemy with a knife.
Defeat an enemy with a critical-hit headshot.
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.