- “Come on, Princess! Your people need you!”
- —Mushroom Rebel, "Toad Warriors"
The Mushroom Rebel first appears when he aids Mario, Luigi, Toad and Princess Toadstool from being captured by a State Troopa; dive-bombing the State Troopa in his helicopter, the Mushroom Rebel lets down a rope ladder from his helicopter, which he tells Princess Toadstool to grab on to, which she does, after being persuaded to by Mario, Luigi and Toad. With Princess Toadstool grasping his rope ladder, the Mushroom Rebel speeds away to the Car Land rebellion's fort.
The Mushroom Rebel later appears during King Koopa and the Koopa Pack's siege of the Rebel Fort, where the Mushroom Rebel is instructed by Princess Toadstool to teach Luigi how to fly his helicopter.