Gadzooks Shirt

Gadzooks Shirt is an event shirt as a gift for typing the corresponding code to unlock this shirt.

Unlocking

Warning: Spoilers ahead. Be cautious when reading.

To unlock this shirt, a code must be used in the "Codes" page of the Shticker Book.

Spoiler tag
To unlock this shirt, type in Gadzooks in the "Codes" page of the Shticker Book.