Oi Lodzinho, I'm gonna give you my recommendations!
Kid Icarus Uprising is a great exclusive, shitton of content and a very funny and engaging story. I'd recommend you trying an hybrid form of gameplay, like a USB controller + mouse, because the game was made with the stand accessory it came with in mind, but even so, it can make your hands pretty tired;
Mario & Luigi Dream Team is a great entry in the series, using much of the functions of the console, like Bowser's Inside Story does. It's graphical change was done superbly;
Kirby Ultra Deluxe and
Planet Robobot are two of my favorites entries in the series. You can't go wrong with it!
Dead or Alive Dimensions encapsulates the story of the first 4 games in a more cohesive structure, and with 3D off, you have 60 fps fighting game with many hours of fun!
Zelda Ocarina of Time 3D gives a nice touch in the graphic department, and with more simple controls, in order to deliver a great experience
Project X Zone is there if you like crossovers with Sega, Capcom, Namco and Monolith Soft games, as well if you like the expanded universe from the previous entries, like Namco x Capcom and Super Robot Wars OG Endless Frontier;
Super Mario 3D Land was my first game, and I have fond memories of being able to play a 3D Mario with a level-base structure
There are many other games like Pokémon, Mario Kart 7, Smash Bros., and a lot of exclusives