That Dynamite Dux code was something to do with the code "NUDE", But I can't remember how you set it off. I seem to recall you have to hold all four keys down though. :/

(Type "Cheat" on the title screen, That should do it. 1-6 selects level, and typing "nude" brings up the bonus screen)

I will post a screenshot at some point, Just for GG. :P

Bollocksed if I can get that kinky intro to appear now, Will work on it later, (Even if it means digging my old disk version out and pushing it through my STFM)