Cooking Navigator, known in Japan as Shaberu! DS Oryōri Navi (しゃべる!DSお料理ナビ, Shaberu! Dīesu Oryōri Nabi) and in Europe as Cooking Guide: Can't decide what to eat?, is a game for Nintendo DS that works like a cookbook, but with many additional features, including calories, maximum time and more, and has a total of 250 international ingredients. As a bonus, the Game & Watch game Chef can also be played.
The following is an unofficial translation of Sakurai's text surrounding the music player:
In Super Smash Bros. Brawl
A song of it, under it's Japanese name, is a random collectible song on PictoChat. The reason because it's under the Japanese name is because the first English name, it's European name, was announced in late April 2008, while Brawl was officially released in the Americas on 10th February 2008. It's unknown if this will be retconned in later official releases.