2D metroids are great, but you have to remember that the transition from 2D to 3D was much more successful for Metroid than Mario. Metroid Prime is the highest selling Metroid game, while for Mario the 2D games all outsold the 3D games.
Personally, I prefer the Prime series, but I'd love a 2D game on DS, along with a 3D DSi exclusive (as hinted).
A game I'm developing with some friends:
www.xnagg.com/zombieasteroids/publish.htm
It is largely a technical exercise but feedback is appreciated.







