Mario Kart 7 is the most recent entry to the Mario Kart series. The game includes flying and underwater sections that are fit perfectly into the tracks. The game has 16 new and 16 upgraded retro tracks, similar to Mario Kart Wii and Mario Kart DS. You can now play people who you have street passed with or people you have raced with before, in addition to people on your friends list. Although the game has a great (for Nintendo) online system, it is lacking in a few areas. The communities, groups of racers online who have something in common, the communities can have special rules such as shells only, but you can only choose one setting. This game is a major improvement upon all previous Mario Kart games. it is worth buying.