We compile this list using the USA region Wii Shop channel, so if you live elsewhere your list will probably be quite a bit different. Please feel free to post your region's findings below as always.
Keep in mind that the list below is a measure of actual sales made recently, not of the total time the game has been available for sale.
Here is the list for the 11th of February:
1 - Tetris Party
2 (3) - My Aquarium
3 - World of Goo
4 (4) - Cue Sports - Pool Revolution
5 (5) - Dr Mario Online Rx
6 (9) - Midnight Bowling
7 (6) - Fun! Fun! Minigolf
8 (7) - Target Toss Pro: Bags
9 (8) - Brain Challenge
10 (10) - Sandy Beach
11 (11) - My Pokémon Ranch
12 (12) - Defend your Castle
13 (13) - Wild West Guns
14 (N) - Snowboard Riot
15 (15) - TV Show King
16 (14) - Tiki Towers
17 (16) - Mega Man 9
18 (17) - Bomberman Blast
19 (19) - Final Fantasy Crystal Chronicles: My Life as a King
20 (18) - Frat Party Games - Pong Toss
* (N) - Denotes a new entry on the Top 20
Well World of Goo continues its slow descent this week, with My Aquarium now jumping ahead of it. The "Big Three" are still intact, but they're now changing positions. Tetris Party once again remains in the top spot and looks like it might be there for awhile.
The big climber this week was Hudson's Snowboard Riot, which came flying in from off the charts to #14. The big droppers this week were Tiki Towers and Pong Toss, both of which fell two spots. In a surprising twist, it seems Midnight Bowling is enjoying a bit of a resurgence climbing up three spots to #6. Sadly, High Voltage Hot Rod Show didn't remain on the charts for very long, as it dropped completely off after only one week in the Top 20.
Once again we're not seeing a lot of movement from week to week, which could be due to the ever-growing number of WiiWare titles that are available. We'll have to wait until next week to see if World of Goo will regain some momentum or continue to drop down the chart.