Just got this game and I'm stuck. I'm trying to swing across the second big ledge when billy is running out of town. what am I doing wrong. I have him swinging back and forth, but he never quite has enough momentum to make it to the other side. He always comes up short. I've done this about twelve times already. I haven't had this much trouble with a game since double dragon 2 when i was like 9 years old.