I've just completed it for the second time now. I am in no way saying that it is a short game, I'm just saying that I seem to get through it very quickly. I have finished it for the second time on Solid Normal, and by doing so, I got the rank of "Pigeon"- To not kill a single enemy in the game. I unlocked the Bandana with that and I'll use it tomorrow on my new The Boss Extreme game

For those of you who have a PlayStation 3 but have not played this, then shame on you. For those of you who have Xbox 360s or Nintendo Wiis, HA! :P