Depending on how quickly you figure out the puzzles, you can finish the game in sub-2 hours. It’s short but impactful. While I would have easily eaten up more bomb jump challenges, Öoo feels complete as is. It’s a stunning, whip-smart Metroidbrainia. Öoo is a brilliantly brain-wrinkling puzzle game that belongs either above or up there with the inspirations NamaTakahashi lists in the credits (Bomb Chicken, Box Boy!, Celeste, Metroid, Yoshi's Island, Cocoon, VVVVVV). Öoo is what I want video games to be.