Great game, I really was terrible at it but I loved the mood and had a great time with the many tries I did. My only suggestion would be to either make the charge time on a gun a little shorter or the time it takes the doors to close again a little longer. A few times I was trying to judge the pattern of the sensors in the hallways but the doors kept closing on me and by the time I reopened the door the sensor was long gone.
Either way, great submission and had tons of fun with it!