I also recommend;
Star fox 64 3D
Tales of the Abyss
Sonic Generations
Sonic Lost World
Dillon's Rolling Western
Jett Rocket 2: The Wrath of Taikai
Gunman Clive
Nano Assault EX
Kersploosh!
SpeedX 3D
Mutant Mudds
Sakura Samurai: Art of the Sword
Pushmo
Kokuga
Vector Racing
Spirit Camera: The Cursed Memoir
Transformers Prime
Tetris Axis
The Denpa Men: They Came by Wave
Cloudberry Kingdom
Zone of the Enders
Assassin's Creed (not Lost Legacy, but the other one, that isn't cancel)
Pokedex 3D Pro (if you like Pokemon)
Pokemon Dream Radar (if you like Pokemon)
a couple are working titles.
There are over 40 Demos in the 3D eShop to download for free.
Check out the "Johnny" games in the eShop to see if you would be into any of them.
And you will soon be able to watch Full 3D Movies on the Nintendo 3DS in the next 12 months to watch on the go.
as well as both Hulu Plus and Netflix also getting 3D streaming during the next 12 months as well, but who will do it first, probably Hulu Plus.
I also recommend 2 of the AR Games (pre-install on the 3DS), which both of them of a Sequel on the same Yellow Card. Try it out.
i also recommand such DLC Mii Plaza games as Mii Force & Monster Manor, but I have personally gone with the bundle for all 4 games.
There are lots of 120 refresh rate 3D videos you can stream online in the eShop. type in Nintendo Show 3D in the search engine of the eShop. With game trailers in the eShop, well some of them are in 3D and some of them are not. Good Luck.