Hi. I bought Mario Kart 8 recently and got the promotion code that allows me to choose a free Wii U game for download. I'm not sure which game to choose and was wondering if anyone have any suggestions? I was leaning towards either New Super Mario Bros U (since Mario games are awesome and I've heard great things about the Luigi expansion) or Sonic Lost World (simply because it has free, Zelda-themed DLC) but I'm not sure, maybe someone can get me sold on one of the other games. I already got Wind Waker. Thanks!