I watched the HD trailer and i'm not sure why anyone would think that's the HD version, perhaps it's not as clear when watching the SD version. This looks like a nice Wii game and nothing more. People seem to forget Sega were very good at pushing the Gamecube, IMO Monkey Ball 2 and F-Zero GX were two of the best looking games on the Gamecube, so it's no surprise that they can make a decent looking game on the Wii.