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 March:
1 (3) - Onslaught
2 - Tetris Party
3 - My Aquarium
4 (4) - World of Goo
5 (6) - Dr Mario Online Rx
6 (5) - Cue Sports - Pool Revolution
7 (7) - My Pokémon Ranch
8 (9) - Fun! Fun! Minigolf
9 (8) - Midnight Bowling
10 (10) - Brain Challenge
11 (11) - Target Toss Pro: Bags
12 (13) - Defend your Castle
13 (12) - TV Show King
14 (15) - Wild West Guns
15 (14) - Sandy Beach
16 (19) - Tiki Towers
17 (17) - Mega Man 9
18 (18) - Final Fantasy Crystal Chronicles: My Life as a King
19 (16) - Snowboard Riot
20 (--) - Bomberman Blast
* (N) - Denotes a new entry on the Top 20
Onslaught completes its run up the Top 20 and lands in the top spot this week knocking out previous Top 20 powerhouse Tetris Party. As you can see, My Aquarium is still holding off World of Goo which is holding steady in the #4 spot for the time being.
The big climber this week was Tiki Towers, which jumped up 3 spots to #16 and is currently enjoying a bit of a resurgence. The big dropper this week was Hudson's Snowboard Riot, which fell 3 spots to #19.
Wayforward's LIT release didn't stick around on the chart too long, as it dropped off this week allowing Bomberman Blast to make a return appearance on the Top 20.
While we had quite a few games flip flop with other games, there wasn't a lot of movement this week. Maybe we'll see more changes on next week's Top 20.