A very be-lated Happy Birthday to you! ^^ The 3ds has such a great library! I've already got close to 60 3ds games now hehe
If you like Rpgs I'd def recommend Fire emblem: awakening on 3ds, sunk 150 hours into that game, bravely default is in second place with around 130hrs and pokemon x in third with 120hrs (yeah I have no life).

Heres my FC if you want 0259-0999-8142