As an avid player of Mario Bros. games, this one took the cake. I really enjoyed the depth of the levels, especially the ones where you're looking downward and you're using the propeller hat to bounce around the sky. A bit intimidating for me to get used to, since I'm new to my 3DS system--but relatively easy to complete :] For example, I beat Worlds 1-6 within the first day I purchased the game.