Your 3DS needs this game inside of it. Now.
These games all control incredibly on the 3DS. None the less, game-play was already solid on the Wii and the DS touch screen and slide pad make up for this immensely. There is one downside to this fantastic package. There is no multiplayer. Online or offline. This really does disappoint me because I hear there is alot of fun to be had in multiplayer Bit Trip Beat. Also, the features added to the Wii release, Bit Trip Complete are absent in this game.
Graphically, this game is a beast. the 3D affects look insanely good and you'll find that the vibrant colours look somewhat better on the 3D's screen than they do on most televisions. The style of this game carries very well to the 3DS.
There are 6 games in this package. Bit Trip Runner, Void, Flux, Fate, Core and Beat. All are great games. Runner being my personal favourite while core following close behind. It's a really good 6-in 1 package, and it's all on the go.
Your 3DS is going to want this game. So you should get it for it. Your 3DS deserves it, and so do you. This is a damn fin game. It's worth your time and money. Buy it.