Harmonix has released the first footage from their crowd funded game Amplitude (I did contribute to the game) and it's pretty solid, especially for something so early in it's development cycle. The footage is chock full of placeholder art and graphics but the footage does give you a feeling for what the final game will look like.
In the footage Create Lead Ryan Lesser walks you through the game in it's current state and shows off some of the new things you'll see in the current build of the game. There is still a lot of work to be done but the initial footage does look promising.
