This game is great, and despite having a few flaws, it's still worthy of five stars to me, there are so many great things about this game like how each world has a cool and interesting boss like Petey Piranha, Monty Tank, or Lakithunder, instead of just the Koopalings like all the other New Super Mario Bros. games. it also has many Brand new enemies, power ups and even two new world themes (Jungle and Mountain). Lastly, their are tons of fun mini games as well as a game mode called Mario vs. Luigi, unfortunately, I haven't been able to try this one out, but I have heard great things about this mode, so with all this said, this game has to be one of the best New Super Mario games ever and is worth your time.