Dev-corner: JUICE up your game

I just happened to come across this nice presentation, and I guess a lot of FOSS games could also take this as a valuable advise:

Juice it or lose it

The "game" they are presenting is playable in your browser by the way, try it here (hit esc for the menu).
Oh and believe it or not, source-code is available too ;)

So don't forget to JUICE it real good!