| Achievement | How to unlock
|
|---|
| 1-Stripe Admiral | Campaign completed at 1-Stripe Admiral or higher rank.
|
| 2-Stripe Admiral | Campaign completed at 2-Stripe Admiral or higher rank.
|
| 3-Stripe Admiral | Campaign completed at 3-Stripe Admiral or higher rank.
|
| Admiral | Campaign completed at Admiral or higher rank.
|
| Banjo King | Defeated the Banjo King.
|
| Cabin Boy | Campaign completed at Cabin Boy or higher rank.
|
| Captain | Campaign completed at Captain or higher rank.
|
| Commander | Campaign completed at Commander or higher rank.
|
| Crab Lord | Defeated the Crab Lord.
|
| Ensign | Campaign completed at Ensign or higher rank.
|
| Grand Admiral | Campaign completed at Grand Admiral rank.
|
| Lieutenant | Campaign completed at Lieutenant or higher rank.
|
| Ms. Magpie | Defeated Ms. Magpie.
|
| Phantom | Defeated the Phantom.
|
| Slug Princess | Defeated the Slug Princess.
|
| Tutorial | Tutorial completed.
|
| Walter | Defeated Walter.
|
| Zanthor | Defeated Zanthor.
|