You can get costume codes after saving the lost alien in each level. Codes can also be found on Miiverse and you can share your codes with others.
| Costume | How to unlock
|
|---|
| 1-1 Nine-Lives Ninja | 90841
|
| 1-2 Head in the Game | 31389
|
| 1-3 Pinkasaurus Rex | 08201
|
| 1-4 Double Agent | 28382
|
