I dont know, but when I got to the point where I couldn't play levels, I had to the person in a black protector suit with a face mask. He was a She, and a strong one at that. You have to battle her in a military force in Washington DC while hundreds of Robots and Majestic officers are firing at you. Once you get her health down to 1/3, she will heal herself. She will do this 2 more times so I suggest you use the Zap-U-Matic gun until she stops healling herself. While she is healling, take out any byshooters in your way until she finishes. The take her out with your red bombs. If you run out of those, use the orange weapon. I know you said that you probably wont get this game anytime soon, but it never hurts to know.