Scooby-Doo!: Unmasked is an action-adventure game for the Nintendo DS where players control Scooby-Doo to defeat enemies and gather clues for Velma. The game features a costume mechanic, allowing Scooby to perform unique abilities such as kung fu or flying. Certain levels require these costumes to complete. Additionally, the game includes various minigames that utilize the touchscreen functionality.
The player uses Scooby-Doo to take down enemies and collect clues for Velma. Scooby-Doo can change costumes which can give him different moves such as kung-fu and fly like a bat. Without using these costumes some levels may not be possible to finish. This is the third Scooby-Doo game to feature a laugh track. In the Nintendo DS game, there are a few minigames included to make use of its touchscreen.