Thanks for the comment. It's need a ton of polishing and I know the boss battle feels too basic and the animations are not set up properly or even missing. I disconected the detector during the boss battle due to would be take a lot of work to redo the detector code to match the dynamic of the boss battle. Also, I disconnected the marking colors for the boss, but I forgot to return the spritecolor of the NPCs to white when we are in the boss battle (due to all the NPCs in this stage are humans, there was a bug having robots disguised in the final battle but I solved today) Instead I added that you can destroy the boss bullets with your LMB. Therefore, the best change to win is to keep as many humans alive until boss battle and try to intercept as many bullets possible to save humans from the boss.
Thanks again to take the time to play and comment.