Progress has been pretty slow lately but I have managed to make some improvements.

The user interaction has been tidied up in a number of places, hopefully making it easier to play the game. More messages have been added to describe what is going on or what is expected of the player. Modal actions like selecting an item to use or viewing the map can now be cancelled by the icon or key that activated them. 

From observing others trying to play the game, using the mouse to move into a doorway posed a bit of a problem. Right-clicking on position A would result in Red stopping at position B and attempting to close the door:

Now, a robot won't try to activate an object in the next position if they are already standing on that object.

I've begun adding some more animations the robot characters for the using of items or attacking:

I think the first level is pretty much complete and a start has been made on the second which will lean heavily into ripping off paying homage to Aliens.