How do you get past the guy in the goldenrod radio tower? - Answers

If you mean when you have to fight Team Rocket at the Radio Tower, at the first floor the guy blocking the way up to the second floor.If so, what you need to do is go underground you will see a Team Rocket grunt there or someone different. When you walk past them they will say something similar to this "Put on this costume" It will be a Team Rocket costume. Then go back to that guy who was blocking your way and then talk to him, you will then see your rival, he will say a few things, then he will say what ever your characters name is then the team rocket grunt will say a few things then you have to battle the grunt.