Has anyone complained about a green screen popping up on the 4th Street..

For better results, use a Gameshark. You need infinite health and energy packs but if you're good enough and don't need infinity at all, don't use a Gameshark...ok?

First thing, On the Main Menu, Go to the Danger room and have some fun. (it will "Exercise" the Game and some kinda things like that. play at least 3 times on the Danger Room.

Second, Load your game on the 4th street or whatever street it is that has this problem. have Nightcrawler in your party. Run forward and a Sentinel will drop in front of you right? teleport AWAY as fast as you can and don't hit a Sentinel. Save all of those mutants first! teleport, press square to talk to them and teleport back. Don't worry if the team gets separated because the mutants that needs to be rescued will still follow you. lead them to the ambulance and go back to the Save point and Save! then kick some Metal Butt!

Don't Worry! this happened to me and I thought that there is Something wrong with the CD but now, I've finished the game but I can't See my Last Character though.