In what can not be considered a good thing, the Playstation 3 has posted it’s worst week of sales since it’s launch in Japan. The Media Create sales numbers for the week ending January 14th show an overall slump in sales all around, yet still paint an unflattering picture for the Playstation 3, showing sales at 25,531 units, not a particularly strong showing for console so recently launched. Nintendo Wii sales were also down, posting it’s second-worst week of sales since it’s launch, with 93,708 units sold, though it’s unclear if anyone can consider selling almost 100,000 units a week a bad thing. Media Create takes sales data from around 3,000 retail stores across Japan, extrapolating them into national sales estimates.

See the Japanese software sales charts for the week ending January 14th after the jump..

1. (Wii, Nintendo) Wii Sports – 61,399 / 794,118
2. (DS, Square Enix) Dragon Quest Monsters Joker – 55,180 / 916,000
3. (Wii, Nintendo) Wii Play – 54,578 / 719,089
4. (DS, Nintendo) Common Knowledge Training – 35,819 / 1,098,912
5. (DS, Nintendo) New Super Mario Brothers – 34,628 / 4,003,134
6. (DS, Nintendo) More Brain Age – 32,865 / 3,838,652
7. (DS, Nintendo) Animal Crossing Wild World – 32,864 / 3,876,696
8. (PSP, Konami) Metal Gear Solid Portable Ops – 28,152 / 306,359
9. (DS, Nintendo) Pokemon Diamond – 22,982 / 2,502,801
10. (DS, Nintendo) Mario Kart DS – 22,640 / 1,997,233

11. Kirby Squeak Squad (NDS, Nintendo)
12. English Training (NDS, Nintendo)
13. Pokémon Pearl (NDS, Nintendo)
14. Yakuza – The Best (PS2, Sega)
15. DS Menu Collection (NDS, Nintendo)
16. Jump Ultimate Stars (NDS, Nintendo)
17. Kanji Test (NDS, Rocket Co.)
18. Zelda Twilight Princess (Wii, Nintendo)
19. Brain Training (NDS, Nintendo)
20. Wario Ware Smooth Moves (Wii, Nintendo)
21. Yakuza 2 (PS2, Sega)
22. Tales of the World (PSP, Namco)
23. Monster Hunter Freedom (PSP, Capcom)
24. Oshare Majô Love & Berry (NDS, Sega)
25. 2 millions Kanji (NDS, IE Institute)
26. Seiken Densetsu 4 (PS2, Square-Enix)
27. The Battle of Yu Yu Hakusho (PS2, Banpresto)
28. DBZ Budokai Tenkaichi 2 (Wii, Bandai)
29. Pokémon Battle Revolution (Wii, Nintendo)
30. Cooking Navigator (NDS, Nintendo)

Read more: PS3 has worst sales week yet in Japan