I`ve been following this Super Sprint discussion, and am also unaware of a bonus credit being available. I haven`t played the MAME version, but would assume it be the same as the arcade ( controls not counting , of course ). A friend of mine could play this game all day, but I never saw him get a bonus credit. The only important thing to do on this game was when your score reaches 639,990.....simply go backwards ( getting no score )and die purposely. And when you enter your initials, you would be credited millions of points, a la Paperboy.....(posted 9204 days ago)Oh yeah, if ye didn`t finish first.....GAME OVER.