The Official May NPD Thread (Data released 6/12 at ~6:30 PM EST)

[BKK2]

01 01 [360] GTA IV (871,000)
02 02 [WII] Mario Kart Wii (787,400)
03 NE [WII] Wii Fit (687,700)
04 03 [PS3] GTA IV (442,910)
05 04 [WII] Wii Play (294,600)
06 05 [WII] Super Smash Bros. Brawl (171,100)
07 NE [PS2] Iron Man (130,600)
08 09 [WII] Guitar Hero III: Legends of Rock (116,800)
09 07 [NDS] Pokemon Mystery Dungeon: Explorers of Darkness (107,000)
10 08 [NDS] Pokemon Mystery Dungeon: Explorers of Time (102,000)
11 10 [360] Call of Duty 4
12 NE [PSP] Iron Man
13 NE [WII] We Ski
14 17 [NDS] Mario Kart
15 16 [NDS] New Super Mario Bros.
16 RE [PS2] God of War 2
17 14 [WII] Game Party
18 15 [PS2] Guitar Hero III
19 NE [PS3] Haze
20 20 [WII] Super Mario Galaxy
21
22
23
24
25 NE [WII] Boom Blox (60,000)
26
27
28
29
30

Of the 9 missing titles from the top 30, 6 are Nintendo games. Knowing Boom Blox sold 60k in 25th place gives a good idea how much some of the other titles sold. Haze probably sold 70k - 80k.