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.
Defeat all enemies in Leech Hunter.
Collect all of only one color of Leech Charms.
Kill 50 enemies with the Death Stare at full charge.
Obtain all weapons.
Finish the game with rank S.
Finish the game on Hard difficulty.
Defeat all bosses except Centurion using Rebecca.
Put on Team Wesker costume.
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).
Finish Leech Hunter with rank A.
Defeat Mimicry Marcus for the first time only using a knife.
Play Leech Hunter.
Finish Leech Hunter with rank E or above.
Defeat Queen Leech.
Complete the treatment plant.
Read all files.
Obtain all keys and use them all.
Defeat the Proto Tyrant.
Destroy a zombie's legs.
Complete the factory.
Fight off the Proto Tyrant.
Complete the laboratory.
Defeat 16 bats in the church.
Defeat Infected Bat.
Get picked up by the Infected Bat.
Play the piano using Rebecca.
Use a Green Chemical.
Complete the training facility.
Combine every type of herb with each other.
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 Centurion.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Change into a costume.
Complete the train.
Defeat an enemy with a critical-hit headshot.
Defeat an enemy by burning them.
Defeat an enemy with a knife.
Create a Molotov Cocktail.
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.