I could walk backwards through the locked gates, I guess that is not intended but we all had to cut corners and time is always too short.
The movement could be better though. I missed strafing and I am more used to using QE for turning and AD for strafing. Tile size seem a bit small, it kind of feels like making baby steps which slows down movement even further.
It is a solid start do you have plans to develop it further?