Marble is a complete remake of the classic wood labyrinth game, in full 3D (both screen) with realistic physics, mp3 music, on-DS visual level editor and more.

Release notes from Noda:

I’m glad to present here an updated version of the one I submitted to the Neo Compo, I hope you’ll enjoy it.

For those who are wondering, it’s labelled “preview” because there’s still much more level elements and 3D engine improvements to be added which already on my to-do list. I wanted to release the current version as I’m not sure when it will be finished.

http://gbatemp.net/index.php?showtopic=102873