Waluigi was introduced by Nintendo in Mario Tennis in 2000 as Luigi's lanky rival and Wario's partner, and his theatrical voice lines quickly became fan favorites. Clips of his screams and taunts from Mario Kart, Mario Party and other spin-offs were later ripped and shared on soundboards and in meme edits. The on fire version isolates a pain reaction, turning a brief in-game hit response into a standalone joke for fire, damage and panic scenes online.