I bought Bit.Trip Saga yesterday from the eShop, and I have to say... what's with the lack of lefty support for FATE? It's pretty much unplayable for me, which is a shame, because it looks pretty fun. The Circle Pad Pro was released months after this game first hit the 3DS, so I can understand why there's no CPP option (although it would have been nice for them to have added that support later via an eShop update). But why didn't they give lefty gamers the option of using the face buttons for movement?
Other than that... RUNNER is one of the best sidescrolling experiences I've ever had, and FLUX is some cool, frenetic fun. BEAT is all right, and I don't care much for CORE and VOID.