Thanks to Joystiq.com for posting Japanese video game sales information for the weeks of December 26 - January 1 and January 2 - January 8. Both of these charts (here) show complete and total Nintendo DS domination.
In the week following Christmas, the DS held eight of the top ten slots, with only Kingdom Hearts II (#4) and Front Mission 5: Scars of the War (#6), both PS2 titles, able to infiltrate the chart. The following week, the Nintendo DS maintained its 8 out of 10 slots, while Kingdom Hearts II fell to #6, and Front Mission 5 fell off the chart completely, only to be replaced with a GBA title. Also, feel free to note the number of Nintendo published games on the charts.

Japanese Video Game Sales Charts
The week of December 26 - January 1

# FORMAT TITLE
1 DS Brain Training 2
2 DS Animal Crossing: Wild World
3 DS Mario Kart DS
4 PS2 Kingdom Hearts II
5 DS DS Training For Adults: Work Your Brain (Brain Training)
6 PS2 Front Mission 5: Scars of the War
7 DS Mario & Luigi: Partners in Time
8 DS Gentle Brain Exercises
9 DS Tamagotchi Connection: Corner Shop!
10 DS Pokemon Mysterious Dungeon: Blue Rescue Force

Japanese Video Game Sales Charts
The week of January 2 - January 8

#. Platform - Title - Publisher - This week's sales

1. NDS - Brain Training 2 - Nintendo - 290,000
2. NDS - Animal Crossing: Wild World - Nintendo - 133,000
3. NDS - Mario Kart DS - Nintendo - 115,000
4. NDS - Brain Training for Adults - Nitnendo - 114,000
5. NDS - Mario & Luigi: Partners in Time - Nintendo - 98,000
6. PS2 - Kingdom Hearts 2 - Square Enix - 83,000
7. NDS - Brain Training for Kids - Nintendo - 63,000
8. NDS - Tamagotchi no PuchiPuchi Omisecchi - Bandai - 62,000
9. NDS - Pokemon Fushigi no Dungeon Blue - Nintendo - 57,000
10. GBA - Pokemon Fushigi no Dungeon Red - Nintendo - 49,000

If you don't have a Nintendo DS, yet, don't you think it's time to get one?
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