Metal Slug: pure madness..
hillarious storylines, massive explosions, vehicles, freaked-out bosses, ultra-cool main-characters, and damn hard to beat.. estimated i'd cost me ~100 coins to beat, lol..
was one of the newer arcade-games, part 1 released 1996 i think..
genre: 2d-shoot'em-up
I think I've played them all through emulation, I salute anyone who can play through the whole game on either few or zero continues though, it becomes extremely manic towards the end - especially the boss battles.