Played this co-op with my girlfriend. The co-op mechanics are honestly garbage, this game feels 15x as frustrating as any solo Mario game I've ever played. Constantly bouncing off each other's heads into death, the screen pulling, etc. As a co-op experience, which I played it as, it's honestly not fun. The world design leaves a lot to be desired too, feels like a rehash of a lot of 2D Mario ideas. Probably my least favorite 2D Mario, but I haven't played them all. Definitely my least favorite co-op. Bummer. I'll stick to stuff like It Takes Two, Portal 2, or Cuphead with my girlfriend.