Gamestop Silver Surfer Code

Where and how do I actually use the code to unlock Silver Surfer in Marvel Ultimate Alliance? Am I too late?

I just bought Marvel Ultimate Alliance tonight, and I noticed that GameStop included a cheat code to get Silver Surfer. I started the game and beat until the level of before I was even interested in Silver Surfer. So where and how do I put the code for it? I'd do that before I start the game the first time? Please be specific, as I I tried many things and none of them seems to work … Any help is appreciated!

I had the same problem. Go to the menu selection during character game. Go to where you are cycling through the heroes and enter the code and press start. Silver Surfer then show up.