Plot: LifeSigns: Surgical Unit, released in Europe as LifeSigns: Hospital Affairs, is an adventure game for the Nintendo DS set in a hospital. Wikipedia
Plot: Polarium is a puzzle game developed by Mitchell Corporation for the Nintendo DS. It was a launch title in Japan, Europe and China. In the game, players use a stylus to draw lines on the DS's touch screen, flipping black and white tiles to clear puzzles. Wikipedia
Plot: Feel the Magic: XY/XX, known in Japan as Kimi no Tame nara Shineru, I would die for you and in Europe and Australia as Project Rub, is a minigame video game compilation developed by Sonic Team and published by Sega for the Nintendo DS handheld game console. Wikipedia