3DS games are expensive and I generally have to buy them myself, so I don't have very many. I have a pretty decent collection for my DS lite though
I have my old DS Lite in midnight blue, which I use as a Game boy mostly. The screen can't support itself anymore, so I have to hold it up with my fingers when I play, lol. The touch screen is a little scratched up from playing pokemon rangers and Imagine makeup artist, haha.
For games on it, I have Pokemon Rangers, Pokemon Platinum Version, Soul Silver version, ACWW, My Sims Agents, Imagine Makeup Artists (my fave game from my childhood lol), Petz hamsterz Life 2, and of course, Nintendogs.
I also have Kirby's Adventure in Dreamland and Pokemon Emerald version for Game boy. I played the **** out of emerald version, but somehow I never beat the Elite 4...
I also have a Purple 3DS with just 3 games: ACNL, ACHHD, and Pokemon Alpha Sapphire :3
I sometimes play my sister's copy of Ocarina on 3DS, and I really want to get the 'new' (new to me, I still play brawl) Super Smash Bros, and triforce heroes so I can play it with my siblings.
Basically I'm really behind on games and systems. We don't have a WiiU yet, but hopefully we'll be getting one before next year! I really wanna play all the LoZ games that have come out for it :<