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.
Put on Team Wesker costume.
Kill 50 enemies with the Death Stare at full charge.
Obtain all weapons.
Finish Leech Hunter with rank A.
Play Leech Hunter.
Finish Leech Hunter with rank E or above.
Collect all of only one color of Leech Charms.
Combine every type of herb with each other.
Finish the game with rank S.
Finish the game on Hard difficulty.
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).
Break free of a Cerberus while they are biting you or trying to push you down.
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.
Defeat Mimicry Marcus for the first time only using a knife.
Complete the factory.
Fight off the Proto Tyrant.
Complete the laboratory.
Defeat an enemy by burning them.
Defeat Mimicry Marcus with a Molotov Cocktail or a Napalm Grenade.
Defeat 16 bats in the church.
Defeat Infected Bat.
Get picked up by the Infected Bat.
Complete the training facility.
Try to push something heavy with Rebecca.
Play the piano using Rebecca.
Shoot down a Hunter or an Eliminator while they are jump attacking in the air.
Create a Custom Handgun.
Destroy a zombie's legs.
Defeat a zombie by stomping on them.
Use a Green Chemical.
Defeat an enemy with a knife.
Defeat Centurion.
Complete the train.
Create a Molotov Cocktail.
Attack an enemy to save your partner who is grappling with that enemy.
Defeat an enemy with a critical-hit headshot.
Defeat Stinger.
Change into a costume.