We all know Mario Bros 3 is a masterpiece landmark in gaming so I will mostly just talk about my impression of the e-reader levels. Some of them are absurdly difficult and others are really creatively challenging, really cool to be able to experience them. Lots of cool moments with combining different elements from the different 2D Mario games like pulling turnips with the cape and fighting airships. All pretty cool stuff. Also has levels centered around the Tanuki suit, Hammer Bros suit, and Frog suit which were sorely missing in SMB3.