How do I make Metal Slug 4 work?

[empty gas tank]

I haven't visited I-mockery since about 8 months ago, and that was for a VERY brief period of time. I used to be a regular poster back when the forums were in their infancy. I apologize if I'm not up-to-date on the codes and idiocincracies(sp) of the forum. But, thanks very much for the help.