Free downloads do not count.

28 June 2011 - Final Fight 2
5 June 2011 - Street Fighter Alpha 2
4 June 2011 - Magical Drop III
3 June 2011 - Zombies (gift)
2 June 2011 - Mario Party 2
21 May 2011 - Fatal Fury 3
19 May 2011 - Chrono Trigger
17 March 2011 - Final Fantasy III
3 February 2011 - Phoenix Wright: Trials & Tribulations
2 September 2010 - Pokemon Snap
12 August 2010 - Castlevania (NES)
12 August 2010 - Kirby's Dream Land 3
2 August 2010 - Neutopia
12 July 2010 - Chronos Twins DX
12 July 2010 - Ufouria: The Saga

29 November 2011 Mega Man X

I don't know the exact date but the last few games I got about two weeks ago were:
Adventures of Lolo 2
R-Type III
Super Ghouls N Ghosts
Uncharted Waters: New Horizons

Uh... Punch-Out!!, I think? That was back in the early summer.

I downloaded Super Adventure Island 2 for Virtual Console, and Escape Vektor and Lilt Line for Wiiware over Thanksgiving. Lilt Line was fun but way too short and the presentation left a lot to be desired. Super Adventure Island 2 was excellent and easily on par with the best of the Wonder Boy/Monster World games from which it draws its inspiration. Unfortunately, the final boss is WAYYY too hard! And it's annoying having to play the entire final level over again every time he kills you. I don't think I'll ever be able to finish it. I haven't put much time into Escape Vektor yet, but I played the first set of levels and it seemed pretty good.

Ninja Gaiden, Mega Man 2, New Adventure Island and Lifeforce back in September.

Metroid II and Battle of the Elements WHICH I JUST REVIEWED AND EVERYONE SHOULD DOWNLOAD.

Did I say that loud?
EDIT: Oh. It says Virtual Console games. So just Metroid II then.

^The OP included Wiiware and Dsiware in his list, though.

Anywho, last ones I downloaded were: R-Type (SMS), Legend of Hero Tonma, Ninja Spirit, and Super R-Type on Sept. 27th. Before that were Final Fantasy III and Cave Story on June 30th.

^The OP included Wiiware and Dsiware in his list, though.

Just Wii downloads that I paid for.

Metroid II and Kirby's Adventure 3D.

Did not know those were available on the Wii as well.

Um... Super Mario Bros. 2. God I love that game.

You do realize you can set a restore point towards the end of the level and just go back to it whenever you die, right?

Uhh, no you can't.

I forgot Chrono Twins DX was Wiiware as well.

KIrby's Dreamland was the most recent. I've also picked up Super Mario Land and Links Awakening. Nothing on Wii recently. I got the NES ambassador games too.

I just downloaded 3D Classics: Kirby's Adventure, Link's Awakening DX, Super Mario Land 2, and Pushmo today, but Kirby's Adventure was the last one to be downloaded.

Tonight I picked up:
Ironclad
Faxanadu
Rygar

Just picked up Super Mario Kart for 100 Club Nintendo Coins. Been wanting to get this one for a long time now. Figured for 100 Club Nintendo coins how can I pass it up.

My GBA Ambassador games.