Excellent work
Maybe there will be a place for you in the gaming business with this one. You never know. If you keep working on it I'm almost positive valve would take you in on this. I'm sure most of us would be looking forward to seeing how this would work.
However, I've noticed that you're making the levels more challenging. Good. The one's in the first one were barely difficult. I would suggest for shift 3, if you make it (please do), that you add in some more obstacles and factors in order to increase the overall game play. Try making bigger maps. Like HUGE ones. That way the game is more challenging and thus gives us the reward of beating it.
Thank you for this submission t newgrounds. Keep up the good work!