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