All you have to do is firstly, run to the end with the green light thing where the blue croshair things want you to go. then hold circle so you can crawl on it. then press square to push the button and you will move on to the next stage. beware the guy will be firing lasers at you so make sure you stay on the opposite side of the wall the guy is facing. when you have pushed the button, the crowd will cheer and if you have crawled on to the panel with the button for spiderman to push, it will move up with you on it to the next section. then all you have to do is reach the end of the line of panels each time until you get to the one with the green light, crawl on to it, push square to make spidey push the button, and go on to the next section. do this all the way round the course. the last couple of stages will be hard because the flip so you face the guy shooting at you , so you will fall off and fail, but after a few times you should work out how to move on. on the last stages i think you have to jump along them before they turn. good luck

i cant help you but youtube can it will show you what to do if you type in becks obstacle and it will come up that is what i did it works trust me