The window robots are complete. I call them SniperBots, because I origionally intended them to look like they were holding sniper rifles. As you can see, thanks to my incredible artistic abilities, they look like they are holding handguns. Still, it's a really cool enemy, and thanks to ukdm for giving me the idea.
Probably next I'll fix that ugly life bar at the top. Instead of just a filled rectangle, I'll put in an image around the life bar and a little stompy face under it. I'm planning to animate the little stompy face like the face in Wolfenstein 3D or Doom, where it shows different expressions based on the player's health.