Sonic Rush satisfies everyone: the fans, the platform junkies, and even the casual gamer.
The sense of speed is unheard of in side-scrolling Sonics, but Rush manages a 10 in that category and COMMANDS it. With the boost system and the constant ability to get boost, you can blast through levels with such speed that you almost forget that you played the level. Each level is packed with all sorts of obstacles that are cleverly placed to give you a chance to pull off tricks to boost that important Tension Gauge.
The graphics aren't the DS's best, but they do well enough. The character models are fairly well done and environments look as amazing as they always have in side-scrolling Sonic games. The bosses especially show how well graphics can go on the DS.
The music is well done. The techno-pop-hip-hop fusion make for addicting tunes. These tracks work well keeping the overall feel of the game light and catchy. The music almost stands by your side, too. Another thing about the music is that is helps, along with the environments, tell a story without words.
The voicework is probably the only blemish on the face of Sonic Rush. Blaze and Sonic's voices are good enough, but Cream and Tails are punch yourself in the face annoying. They utter the respective character's name in almost every sentence. Other than that, though, sound is great.
Sonic Rush is a great game whether you are a Sonic fan, a platform lover, a casual gamer looking for a quick fix, or a anyone looking for solid DS fun.