If you want to hang a villian on a streetlamp, what you have to do is grapple the villian by using triangle + circle, then use web-hammer (you must first buy it at the spidey-store) as many times as you want. When the villian is on the ground, press x as fast as you can. Spidey will jump a decent amount of distance to the nearest steetlamp, and hang the villian by his legs. If the villian has a small amount of health or no health at all, he will hang there for a while. If he has a good amount of health, his health will slowly go down and then he will fall and lose even more health.