A lot of the games aren't worth what they're going for these days to me so I only went after the ones I really like.
That said Super Turrican 2 is one of the highlights of my collection and I got it for next to nothing.
I own Hagane as well... the Super Famicom version because I'm not insane.
I hope to see Cybernator or Metal Warriors in the next part or maybe Firepower 2000 or Power Rangers: The Fighting Edition.
Seriously that last one is one of the best fighting games on the console.