I bought the Wii mostly because of platformers. But SMG 1 and 2 were alright but overrated in my opinnion. NSMB Wii dissapointed me greatly. Fortunalty, Donkey Kong makes up for everything (best platformer I've played in last 8 years). But I was wodnering if there are any non-Nintedo platformers on Wii, I've never played a non- Nitendo game on Wii before ( at least not a good non Nintendo game), so I was wondering if you can recommend me some non Nintendo platformers on Wii?

The only ones I have are Megaman 9 and 10.  They are awesome and totally worth the 1000 points each

I know it's still Nintendo, but if you haven't tried Kirby's Epic Yarn, that's a fun one, too.

For third parties, Flip's Twisted World isn't too bad.  The Lost Winds games on WiiWare are pretty nice, too, though they're sidescrollers.  Can't say I've played any other decent non-Nintendo Wii platformers.

Here's some 3D Platformers that I recommend:

Sonic Colors: People call it the return of Sonic for good reason. Fast paced action, power-ups that don't get in the way, no new Sonic friends, and solid gameplay all around. It's my favorite 3D Sonic out there.

Epic Mickey: If you're a fan of classic Disney, you have to get this game. It's more of an Action Platformer like Banjo-Kazooie, but the game is great. Really great. Only problem is its N64/PS era camera. Other than that, the game is magical.

de Blob/de Blob 2: I haven't played the sequel, but the original was a very different type of platformer. Great mix of visuals, music, and gameplay made for a unique and fun experience.

If you're looking for more 2D Platformers:

Kirby's Epic Yarn, Klonoa,  A Boy and His Blob, and Wario Land: Shake It!

The Klonoa 1 remake for the Wii. Magical!

http://www.metacritic.com/game/wii/klonoa

Disappointed I was the first to mention it though, should be on all the lists =(

I loved sonic colours on the wii! It was very good, but I can't think of many others.
If you have a ps3 ratchet and clank A crack in time and lbp2 are good choices.

Klonoa. Play Klonoa. Great game. Also give Nights Journy of Dreams a shot. Its a fun game.

Epic Mickey!!! Seriously, look it up!

Klonoa & Sonic Colours everything ive played is just been ok, not bad but not great. (im looking at you Epic Mickey)

De Blob 1&2: Great 3D platformers (though not very conventional ones)

Klonoa: Good 2D platformer

Plenty of Sonic games on Wii (If you're into Sonic games):
- Sonic and the Secret Rings (3D)
- Sonic Unleashed (3D)**great
- Sonic and the Black Knight (3D)
- Sonic the Hedgehog 4: Ep1 (2D)**great
- Sonic Colors (3D)**great