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