Here is the full list of all 40 Resident Evil 4 trophies - there are 25 bronze, 10 silver, 4 gold and 1 platinum.
Obtain all trophies.
Parry an enemy with a knife.
Upgrade a weapon.
Get the exclusive upgrade for a weapon.
Complete a request for the Merchant.
Rescue Ashley as she's being carried away by the enemy.
Destroy a Clockwork Castellan.
Defeat Del Lago.
Defeat Bitores Méndez.
Defeat the Verdugo.
Defeat Ramón Salazar.
Defeat Jack Krauser.
Defeat Osmund Saddler.
Defeat 3 enemies at once with a flash grenade.
Defeat a Garrador using only knives.
Kill 2 parasites inside a Regenerador with a single bullet.
Throw a grenade into Ramón Salazar's mouth.
Use a cannon to defeat a zealot.
Make it through both minecart sections in the underground tunnel without taking any damage.
Reach the top of the clock tower without the lift stopping once.
Escape on the water scooter without taking any damage.
Sell a single treasure for at least 100000 ptas.
Obtain all treasures indicated on the village treasure map in a single playthrough.
Obtain all treasures indicated on the castle treasure map in a single playthrough.
Obtain all treasures indicated on the island treasure map in a single playthrough.
Obtain all weapons.
Complete all requests from the Merchant.
Destroy all Clockwork Castellans.
Complete the main story on Standard mode or higher.
Complete the main story on Standard mode with an S+ rank.
Complete the main story on Hardcore mode or higher.
Complete the main story on Hardcore mode with an S+ rank.
Complete the main story on Professional mode.
Complete the main story within 8 hours.
Complete the main story without using a recovery item.
Complete the main story using only knives and handguns. (Excluding specific battles.)
Complete the main story without talking to the Merchant once.
Complete a game at the shooting range.
Earn an S rank in all games at the shooting range.
Shoot through and destroy 5 targets at the shooting range with a single shot.