Turbo,
Thanks...I did think about that. However, Mario and Luigi are in a game I used to play alot, Mario Brothers, which is the cab that is blowing up in the background. Sonic is also on a few different arcade machines. I did stretch it with Wario but the picture seemed to fit what was happening so well that I initially threw it in there and have stuck with it.
Spiderman has his own game and is also in the Capcom fighting games. Other games that I played a lot but couldn't find any graphics that were worth anything were Pole Position, Spy Hunter and Galaga.
Again, thanks for the feedback.