Oh god... hmm 33, though if you want to include stuff in Wii Mode, much more.
- Wii Fit U
- Art Academy
- Cloudberry Kingdom
- Ducktales Remastered
- Giana Sister's: Twisted Dreams
- Block Drop U
- Zen Pinball 2
- Super Mario Bros 3
- Mega Man
- Super Mario World
- F-Zero
- Yoshi
- Earthbound
- Super Metroid
- Kirby's Dreamland
- Balloon Fight
- Super Ghouls and Ghost
- Super Castlevania IV
- Super Mario Bros 2 (not lost levels)
- Punch Out
- Kirby Super Star
- Donkey Kong
- Pikmin 3
- Lego City Undercover
- A legend of Zelda: A Link to the Past
- Another World Out of this World
- The Cave
- Bit Trip Presents Runner 2: Future Legend of Rhythm Alien
- Trine 2
- Dr. Luigi
- Donkey Kong Country Tropical Freeze
- Yoshi's Island GBA
- Pushmo World