So, you say that for MAME, each games has rules and stuff. but what if the game I'm thinking about running for doesn't have a set rules? 
Been wanting to do a speed run for Wonderboy in Monsterland, but it doesn't have any rules on it. "No rules have been defined" is all it says when I click on the rules.

So, I've been thinking about doing a speedrun for the arcade ver. of this game either in 100% or any%. Question is... How?!  do I just capture the mame's video out? is there certain settings I have to run it on? How do I stamp the time clock and all that? Sorry, I'm all so new to this..