ATU, or "Activation Token Utility," has been mentioned in some gaming circles as it relates to Super Mario Bros. Wonder on the Switch. While details are scarce, some speculate that ATU might be related to online activation or authentication processes for certain game features or content.

: Collectable badges allow players to customize their abilities, such as a Crouching High Jump , a Parachute Cap for gliding, or Grappling Vines .

The terms in your query are commonly associated with the following: : File formats for Nintendo Switch game backups.

When discussing Switch software, enthusiasts often refer to file types: