Rabbid Challengers are supporting characters that appear in Mario + Rabbids Kingdom Battle. They are Rabbids that wear large burlap caps resembling a Toad's bulb. Rabbid Challengers appear on battlefields where they host challenges after a world is beaten. The color of the spots on their cap signifies the difficulty of their challenge, with green, blue, yellow and red signifying very easy, easy, medium and hard difficulties respectively. To enter a challenge, the player has to approach a Rabbid Challenger and press . They are seen waving a flag, which initially appears black and displays the Rabbid enemy insignia, but turns white after the heroes clear the corresponding challenge. They award the player with Power Orbs and coins upon clearing a challenge for the first time and only coins for subsequent completions.