Elite Beat Agents is the American version of Nintendo's Japanese-Only music series. In Japan the series Osu! Tatakae! Ouendan is not very popular, but it became a hit with the import crowd in America. Seeing this, Nintendo decided to release Elite Beat Agents, an Ouendan styled game featuring American music.
In this game, you use the Nintendo DS stylus to tap the rhythm of a song. Circles appear all over the screen, and you must tap them in time with the music and in numbered order. The game starts out easy, but can get very challenging when you unlock Sweatin', the hard difficulty setting.
The Agents are dancing in very nice 3D behind the tap buttons. They animate pretty well and fall when you miss a circle, and get back up when you start doing better. The stories behind each song are told with bright and colorful 2D graphics on the DS's top screen.
The most important part of the game is the music. The songs in the game are what I'd consider guilty pleasures. All the songs are popular, though some songs you wouldn't admit that you enjoy to your friends. Unfortunately, the sound quality of the DS's speakers aren't as good as some would like, and can leave the songs sounding a little muffled.
Overall, Elite Beat Agents is a wonderful music game. It isn't too difficult to learn for those that are new to the genre, but does offer a good amount of difficulty for those that are experienced also. And for those that do enjoy Elite Beat Agents, Ouendan 1 and Ouendan 2 can be easily imported and played on an American DS.