Rabbid Luigi is a Rabbid dressed as Luigi, and one of the eight main playable heroes in Mario + Rabbids Kingdom Battle. He was presumably created through Spawny's use of the SupaMerge, although it is not seen. Rabbid Luigi is capable of using elemental forces to his advantage in battle, although he is easily scared and prefers to avoid conflict. In Mario + Rabbids Kingdom Battle, Rabbid Luigi teams up with Mario, Luigi, Princess Peach, Yoshi, Rabbid Mario, Rabbid Peach, and Rabbid Yoshi to save the Mushroom Kingdom from Rabbid-fused enemies and Bowser Jr.'s attempted takeover. In the game, he has average offense and mobility, as well as great defense.
Rabbid Luigi first appears in the beginning after he and Rabbid Peach team up with Mario to save the Mushroom Kingdom.