Here is the complete version!

New features:

• Weapon laser indicates if an object is destructible
•  Enemies react to damage
•  Lisa reacts to damage

 More details about the story

• Complete soundtrack

The game remains short, as it was always intended to be a quick experience. I also experimented with adding some destructible objects (just the lamps and some generators) to learn a little more about Godot.
Anyway, I hope you like it.