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