The best alternatives to Kombo King are Guacamelee!, DarkMaus, and Soldat. If these 3 options don't work for you, we've listed a few more alternatives below.
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Guacamelee! is a hybrid 2D Metroidvania style action platform and brawler. Players control the luchador Juan and explore an open, non-linear world to complete the central story objectives while collecting necessary character upgrades and battling enemies.