Here is the full list of all 30 River City Girls trophies - there are 16 bronze, 6 silver, 7 gold and 1 platinum.
Obtain all trophies in "River City Girls".
Reach 100% completion.
Reached Max Level.
Parry 10 enemy attacks.
K.O. the secret boss.
Completed the game on Hard.
Was defeated in detention.
Catch a dodgeball thrown by your ally.
Complete the game in Co-Op.
Completed the game with a secret character.
That wasn't very nice!
Destroyed all Sabu statues.
Defeated an enemy with a fish.
Collected $5000
K.O. Sabuko.
Enter the Penthouse.
Completed all of Godai's quests.
K.O. Noize.
K.O. Abobo.
Find the keys in the junk yard.
K.O. Hibari.
Obtain an item from the Pawn Shop.
Catch a boomerang.
K.O. Yamada.
Enter the Mall.
Defeated an enemy by hitting them with another enemy.
K.O. Misuzu.
Equip a new outfit.
Destroy a vending machine.
Attacked Mr. Rudis.