Super Mario Bros.: The Lost Levels has some really fun levels, but honestly it's mainly just the first on hard mode with worse controls and no originality. You can't tell the difference between this and the first and the game doesn't have anything to make it stand out. The boss fights are the same, some of the levels are copy paste, and the gameplay is the same and somehow worse. There are fun levels and I'd say every world has one or two good ones, which isn't good at all. I liked some additions like the wind but other than that Lost Levels is a useless sequel that I find more annoying and irritating than fun.