New links.
Street Fighter EX 2 Plus - Arcade/Coin-Op I don't know anything about the scoring. Is it good? Bad?
My Vs Fighter vote =
Metal Slug - Arcade/Coin-Op
Back ups.
Street Fighter EX - Arcade/Coin-Op
Street Fighter EX Plus - Arcade/Coin-Op
Street Fighter EX 2 - Arcade/Coin-Op
Street Fighter Alpha 3 - Arcade/Coin-Op
Undercover Cops is a great solid game.
Shadow Force is a really interesting beat em up. It is Technos' (the company that invented the genre) final arcade game. It has 6 buttons (way more than any other similar game), a bunch of combos and special moves and you can morph into any enemy and use their abilities. I haven't played it enough to know if it is a solid game but that description sounds cool.
I have only played Battle Circuit for a few minutes but it looks really awesome.
Caddies and Dinos is hugely popular but I'm not a fan.
I don't think we can go wrong with any of those choices.
I am leaning towards throwing Flashback in but I'm nervous that it will be a mistake. If you are very anti-Flashback now is the time to say so.