Mystery Dungeon, it's a deeper series than what most other people think. They are better than the main games.
Explorers Sky is one of the most packed Pokémon games I've played and there are so many different ways to play it to challenge yourself as well.
Check out my Upcoming Wii U Games 2014 Thread
3DS Friend Code: 4553 - 9954 - 4854. Name - David