Well, this is my first stamp. Looks a little shoddy, but I'm not too good with GIMP, either. But it is what it is. So, feel free to use this stamp if you wish. Personally, I prefer the Game Gear Sonic 2 over the Genesis Sonic 2 - thus, the stamp.
Instructions and the stamp's template were provided courtesy of SparkLum. Keep in mind that his instructions weren't the problem - as I said, I'm not too good at using GIMP.