Nsp (eshop) - Brawl.io Switch

It’s fast-paced, chaotic, and rewards aggressive "brawling" logic where the biggest player dominates the map. 4. Kirby’s Dream Buffet

In this physics-based brawler, you control a black hole moving through a city. You consume objects—and other players—to grow larger. Brawl.io Switch NSP (eShop)

Always download games directly through the Nintendo eShop to ensure your console remains secure and receives the latest patches. it captures the one-hit-kill

While not strictly an "io" game, it captures the one-hit-kill, fast-respawn chaos of the genre. You play as adorable food items armed with boomerangs, fighting in top-down arenas. Brawl.io Switch NSP (eShop)

Think of this as "Kirby-flavored io." 4 players race through food-themed courses, eating strawberries to grow larger. In the final stage, the "brawl" happens as you try to knock heavier opponents off the stage.