COMG is not much accurate for weekly rankings. Tsutaya is better.
Tsutaya chart:
01 (__)
[PS3] Dynasty Warriors 8 (Koei Tecmo)
02 (__)
[3DS] Professor Layton and the Azran Legacies (Level 5)
03 (01) [PS3] Metal Gear Rising: Revengeance (Konami)
04 (__)
[PSV] Senran Kagura Shinovi Versus: Otome Shoujotachi no Shoumei (Marvelous AQL)
05 (__)
[PSV] Phantasy Star Online 2: Special Package (Sega)
06 (__)
[PSP] Shining Ark (Sega)
07 (02) [3DS] Dragon Quest VII: Fighters of Eden (Square Enix)
08 (03) [3DS] Animal Crossing: New Leaf (Nintendo)
09 (__)
[3DS] Dragon Ball Heroes: Ultimate Mission (Bandai Namco Games)
10 (__)
[PS3] Macross 30: Ginga o Tsunagu Utagoe (Bandai Namco Games)
11 (__)
[3DS] Touch Detective: Nameko Shigeru (Success)
12 (__)
[PS3] Macross 30: Ginga o Tsunagu Utagoe [30th Anniversary Edition] (Bandai Namco Games)
13 (¿?) [WII] Taiko no Tatsujin Wii: Super Deluxe Edition (Bandai Namco Games)
14 (07) Dragon Quest X: The Five Awakening Races Online (Registration Code)
15 (09) Animal Crossing: New Leaf (DL version)
16 (__)
[PSV] Senran Kagura Shinovi Versus: Otome Shoujotachi no Shoumei [Niu Niu DX Pack] (Marvelous AQL)
17 (06) [3DS] Fantasy Life (Level 5)
18 (10) [3DS] Monster Hunter 3 Ultimate (Best Price!) (Capcom)
19 (11) [3DS] New Super Mario Bros. 2 (Nintendo)
20 (12) [PS3] Call of Duty: Black Ops II - Dubbed Edition (Square Enix)
http://www.tsutaya.co.jp/rank/game.html