Nintendo Wii

North America:
1. Wii Play (Nintendo)
2. The Legend of Zelda: Twilight Princess (Nintendo)
3. SSX Blur (EA Games)
4. WarioWare: Smooth Moves (Nintendo)
5. Sonic and the Secret Rings (Sega)

Japan:
1. Wii Sports (Nintendo)
2. Fire Emblem: Akatsuki no Megami (Nintendo)
3. Hajimete no Wii (Nintendo)
4. Zelda no Densetsu: Twilight Princess (Nintendo)
5. Densha de Go! Shinkansen EX: Sanyou Shinkansen Hen (Taito)

UK:
1. The Legend of Zelda: Twilight Princess (Nintendo)
2. Sonic and the Secret Rings (Sega)
3. WarioWare: Smooth Moves (Nintendo)
4. Red Steel (Ubisoft)
5. Excite Truck (Nintendo)

Nintendo DS

North America:
1. Brain Age (Nintendo)
2. New Super Mario Bros. (Nintendo)
3. Diddy Kong Racing DS (Nintendo)
4. Mario Kart DS (Nintendo)
5. Castlevania: Portrait of Ruin (Konami)

Japan:
1. SimCity DS (EA Games)
2. Layton Kyouju no Fushigi na Machi (Level 5)
3. Sekaiju no Meikyuu (Atlus)
4. Dragon Quest Monsters: Joker (Square Enix)
5. Eigo ga Nigate na Otona no DS Training: Eigo Duke (Nintendo)

UK:
1. Dr. Kawashima’s Brain Training (Nintendo)
2. Animal Crossing: Wild World (Nintendo)
3. New Super Mario Bros. (Nintendo)
4. 42 All-Time Classics (Nintendo)
5. Nintendogs: Lab & Friends (Nintendo)

Source: Gonintendo