Game Case Problem? I am going to trade in a spectator sport, but there is...

I am going to trade in a spectator sport, but there is a problem. I tried taking rotten a sticker on it and now it is sticky where on earth it was. What can I do to find the sticky off minus ruining the plastic on the case
Does anyone know how to build a fly...
Answers:    Rub it next to your finger, and roll it off. It'll globe up if you keep working at it. It's mechanical, but it can be done.
If you try any solvents (rubbing alcohol might work), try it on a very small, unnoticeable section of the plastic first to make sure it's not going to damage it.
Good luck.