nds在美国的主要推力是什么？

npd march top 20

NDS POKEMON PLATINUM VERSION
NDS MARIO KART DS
NDS NEW SUPER MARIO BROS
NDS PROFESSOR LAYTON AND THE CURIOUS VILLAGE
NDS GRAND THEFT AUTO: CHINATOWN WARS
NDS LEGO STAR WARS: COMPLETE SAGA
NDS PHINEAS AND FERB
NDS MARIO PARTY
NDS SUPER MARIO 64 DS
NDS CLUB PENGUIN: ELITE PENGUIN FORCE
NDS COOKING MAMA
NDS LEGO BATMAN
NDS KIRBY SUPER STAR ULTRA
NDS PAWS & CLAWS: PAMPERED PETS
NDS BRAIN AGE 2: MORE TRAINING IN MINUTES A DAY
NDS FIRE EMBLEM: SHADOW DRAGON
NDS BRAIN AGE: TRAIN YOUR BRAIN IN MINUTES A DAY
NDS POKEMON RANGER: SHADOWS OF ALMIA
NDS MYSTERY CASE FILES: MILLIONHEIR
NDS MARIO AND SONIC: OLYMPIC GAMES