Here is the full list of all 24 The Rumble Fish 2 achievements.
Train for over 10 minutes
Complete arcade mode with Aran
Complete arcade mode with Bazoo
Complete arcade mode with Boyd
Complete arcade mode with Garnet
Complete arcade mode with Hikari
Complete arcade mode with Kaya
Complete arcade mode with Lud
Complete arcade mode with Mito
Complete arcade mode with Orville
Complete arcade mode with Sheryl
Complete arcade mode with Typhon
Complete arcade mode with Viren
Complete arcade mode with Zen
Fight against Greed in arcade mode
Beat Hazama in arcade mode
Beat Beatrice in arcade mode
Complete Time Attack in under 10 minutes
Win 10 matches in Survival mode
Play a VS match
Watch The Rumble Fish 1 movie in the gallery
Break 100 character parts
Beat the game in Lunatic difficulty
Unlock all achievements