| Achievement | How to unlock
|
|---|
| Aran | Complete arcade mode with Aran.
|
| Bazoo | Complete arcade mode with Bazoo.
|
| Beatrice | Beat Beatrice in arcade mode.
|
| Boyd | Complete arcade mode with Boyd.
|
| Garnet | Complete arcade mode with Garnet.
|
| Greed | Unknown.
|
| Hazama | Unknown.
|
| Hikari | Complete arcade mode with Hikari.
|
| Kaya | Complete arcade mode with Kaya.
|
| Lud | Complete arcade mode with Lud.
|
| Mito | Complete arcade mode with Mito.
|
| Orville | Complete arcade mode with Orville.
|
| Outfit renovator | Unknown.
|
| Sheryl | Complete arcade mode with Sheryl.
|
| Survivor | Win ten matches in Survival mode.
|
| The Fastest Fish | Complete Time Attack in under ten minutes.
|
| The Rumble Fish 2 | Unknown.
|
| The Rumble Fish | Unknown.
|
| The Strongest Fish | Unknown.
|
| Training Session | Unknown.
|
| Two players enter, one player leaves | Play a VS match.
|
| Typhon | Complete arcade mode with Typhon.
|
| Viren | Complete arcade mode with Viren.
|
| Zen | Complete arcade mode with Zen.
|