I was lucky and apply scope creep since the first second. The first idea was to make rooms where you control the doors and activate the full room as detector, and the boss is in one room. In that idea, the humans have to kill in melee the undercover robots and that allows to pick up the guns. When, as a player, you feel your humans are ready to fight the boss, force them with the doors and some beacons to go to that room and fight the boss. As you can imagine that idea is more for a month game jam, so for 48 hours I have to get rid of most of the gameplay and focus on an empty space. Even I took the boss sprite from the game jam image to save time.
Thanks for the comment. I played your game (all the exe. I downloaded in a isolated computer for safety reasons so are the last one to be tested in gamejams) and really enjoyed.