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.
Collect all of only one color of Leech Charms.
Defeat Mimicry Marcus for the first time only using a knife.
Defeat an enemy with a knife.
Put on Team Wesker costume.
Finish the game without combining herbs.
Finish the game without using a recovery item (including Green Chemicals).
Kill 50 enemies with the Death Stare at full charge.
Obtain all weapons.
Finish the game with rank S.
Finish the game without saving.
Finish the game without using a First-Aid Spray.
Finish Leech Hunter with rank A.
Defeat all enemies in Leech Hunter.
Finish Leech Hunter with rank E or above.
Play Leech Hunter.
Defeat Queen Leech.
Defeat all bosses except Centurion using Rebecca.
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.
Combine every type of herb with each other.
Complete the factory.
Fight off the Proto Tyrant.
Shoot down a Hunter or an Eliminator while they are jump attacking in the air.
Complete the laboratory.
Destroy a zombie's legs.
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.
Create a Custom Handgun.
Change into a costume.
Play the piano using Rebecca.
Defeat a zombie by stomping on them.
Use a Green Chemical.
Defeat Centurion.
Defeat an enemy by burning them.
Defeat an enemy with a critical-hit headshot.
Complete the train.
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.