I did a quick test. Amazing work
Special mention for the elevator music. lag between the atmosphere and the music is really well chosen (funny side).
It is always a good thing to have a secret room ( I will feel forced to take on all the walls to check ) .
I like the aggressive look of the robot and the design of lasers.
The amount of HP of "flying brains " is perfect ( neither too much nor too little) .
I thought I detected a problem or two but I will check again later.