From Wikipedia:
Feel the Magic: XY/XX, known in Japan as Kimi no Tame nara Shineru, "I would die for you" (きみのためなら死ねる) 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. It was released in North America in November 2004, December 2004 in Japan, February 2005 in Australia, and March 2005 in Europe.
It follows the attempts of a young male protagonist trying to impress a young woman while being aided by a group of people known as the "Rub Rabbits". The game consists of a series of minigames in relation to the overall plot. These minigames are all controlled only by the Nintendo DS touch screen and microphone.