Hello. Overall it's a nice game.
A decent story and graphics(NB for the movies), very good tech prog skills and a great effort for one man show.Congrat!
However....there are few cons if may I.
The tasks solutions are not very intuitive, you need doc and maps for floors, maybe an interactive direction asistant(arrow) or the old task plan in the menu will help.Also a good point to show the save screen before critical events.
A decent solution for direction keys, maybe you can improve it a little(for all the critics above, is not easy to find a working solution on this engine to simulate a 3D) .
There are some problems with triggers management (the bug machine could be a solution but not the best, BTW, I have problem with Kate's trigger , bug machine not solve this.
Ammunition and resources. You need too much time(from my point of view) for them and the game become a little boring. I appreciated the cheat machine xD.
Anyway, good luck with your game! And maybe you can upload an updated bug machine with Kate reset option or maybe for all the girls, just in case !