There has been a significant slump in software sales in Japan over the last year (27/12/10 to 25/12/11). The software industry saw a drop in sales of 14%. Hardware sales were up, but they were not enough to stop an 8% drop in total revenues.
Famitsu's Enterbrain published the statistics, which were in turn translated by andriasang, and they make for interesting reading.
Nintendo's 3DS dominated hardware sales, and Mario takes first and second in the software charts, rounding off what will be pleasing year for Nintendo.
Japanese hardware sales for 2011:
Nintendo 3DS: 4,135,739
PSP: 1,960,177 (18,237,108)
PlayStation 3: 1,467,261 (7,417,148)
Wii: 937,451 (12,167,743)
Nintendo DS: 711,204 (32,835,502)
PlayStation Vita: 402,794
Xbox 360: 114,075 (1,520,738)
Japanese software sales for 2011:
[3DS] Mario Kart 7 (Nintendo, 12/11): 1,082,391
[3DS] Super Mario 3D Land (Nintendo, 11/11): 1,042,511
[PSP] Monster Hunter Portable 3rd (Capcom, 12/10): 1,021,457
[3DS] Monster Hunter 3G (Capcom, 12/11): 809,322
[PS3] Final Fantasy XIII-2 (Square Enix, 12/11): 697,146
[PSP] Final Fantasy Type-0 (Square Enix, 10/11): 696,428
[WII] Minna no Rhythm Tengoku (Nintendo, 7/11): 633,429
[PS3] Tales of Xillia (Namco Bandai, 9/11): 632,151
[WII] Wii Sports Resort (Nintendo, 6/09): 612,807
[WII] Wii Party (Nintendo, 7/10): 584,545