Select JP DS 3rd Party LTD Titles/Numbers* Dragon Quest Monsters: Joker Square Enix 1,398,500 Tamagotchi: Corner Shop Namco Bandai 1,110,000 Final Fantasy III Square Enix 1,003,700 Tamagotchi: Corner Shop 2 Namco Bandai 780,800 Professor Layton and the Curious Town Level 5 593,700 Megaman Star Force Capcom 531,900 Final Fantasy XII: Revenant Wings Square Enix 505,300 Apollo Justice, Ace Attorney Capcom 455,700 Dragon Ball Z: Bukuu Ressen Namco Bandai 313,300 Itadaki Street DS Square Enix 304,700 Phoenix Wright, Ace Attorney Capcom 300,000 Dragon Quest Heroes: Rocket Slime Square Enix 293,600 Children of Mana Square Enix 281,000 Super Robot Wars W Banpresto 276,100 Harvest Moon: The Island I Grew Up On Marvelous 250,400 Naruto: Saikyou Ninja Daikesshuu 3 Takara Tomy 220,800 Digimon Story Namco Bandai 217,600 Puyo Puyo! Sega 209,300 Tales of the Tempest Namco Bandai 196,000 Shiren the Wanderer DS Sega 195,000 Mushi King: Road to Greatest Champion Sega 191,400 SD Gundam G Generation Cross Drive Namco Bandai 180,000 Digimon Story 2: Sunburst/Moonlight Namco Bandai 165,400 Phoenix Wright Ace Attorney 2 Capcom 164,300 It's a Wonderful World Square Enix 163,000 Sim City DS EA 158,100 World Soccer Winning Eleven DS Konami 145,300 Power Pro Pocket 9 Konami 144,500 Final Fantasy Fables: Chocobo's Tales Square Enix 139,800 Naruto: Shinobi Retsuden Takara Tomy 137,700 Dragon Ball Z Harukanaru Densetsu Namco Bandai 136,300 Naruto RPG 2 Takara Tomy 131,900 Harvest Moon: Rune Factory Marvelous 125,600 Naruto: Saikyou Ninja Daikesshuu 4 Takara Tomy 121,500 Etrian Odyssey Atlus 119,800 Harvest Moon for Girls Marvelous 112,700 Mega Man Battle Network 5 Capcom 106,600 Harvest Moon DS Marvelous 106,100 Tea Dog's Room DS MTO 105,300 Bleach DS 2nd Sega 102,000 Feel the Magic XX/YY Sega 100,700 *Numbers are approximate

3 million sellers in Japan alone, not really THAT bad.

Nintendo, as always, is very tough competition on its own consoles.

and people say third party dev cant sells on nintendo systems.