Super Onion Boy 2 is a 2D retro-style adventure game where your mission is to save your friend, who has been captured by a terrible monster with psychic powers. Defeat enemies along the way using superpowers and epic transformations, collect coins and stars to earn extra lives, find chests with magic potions, and defeat all the terrible bosses until you reach the final showdown. Super Onion Boy 2, 2D platformer, retro game, pixel art, adventure game, kids friendly, no blood, Mario-like, psychic monster, superpowers, platforming, coins, stars, magic potions, epic boss, video game, online game, free game, adventure, nostalgia