This game, while a carbon 'copy' of the mechanics of New Super Mario Bros. U (NSMBU) is a different beast to the Mario game all together. Yes you are on the same map, yes the courses have the same themes, but that's pretty much all there is.
Each course only gives you 100 seconds, making the game more of an immediate challange (less time to make mistakes!) and the courses have been re-designed so they're more of a challange to players. I wouldn't recomend this to the faint of heart. But if you're up for a super challange then look no further.