Game engine nearly complete

My game idea is to help a human test subject being held against her will in a biology lab. The lab is filled with guards and scientists, some who might be nice. You need to keep her hidden while you find your way out.
Anyway, at this point the guards walk on their own and turn around when they hit walls, walking a new random direction. The person you're rescuing follows you around properly as well. The guards will now yell if they spot the escapee from a distance.
What remains to be done is map transitions (from walking down stair outside), more artwork, more maps, and an inventory and control panel. Not exactly simple!
I would have uploaded another screenshot, but as of right now, the game looks just like the map editor...