Here comes an new unexpected release
Complete and very nice, a kind of fzero like game, the game is complete and is a final version, apperently it get canned at the last minute more details about it here :
http://japanese-cake.livejournal.com/11823.html
You can find PC gameplay videos of it on youtube, the DC version looks pretty the same.
I think the guy deserves at least a shoutout for this