For the love of god, you need to get Border Down. It looks like GRev is being gay about porting it to any other platforms (to be fair, there's only a few guys there and they look like they're either busy with new stuff or working on Senko no Ronde on the 360...which will sell like shit)

Radirgy is pretty nice but the difficulty is a bit on the high end.

If you don't find a way to obtain Under Defeat soon, I'll fucking kill you.

I don't have a whole lot in the way of DC warez (I don't feel like putting up with downsampled audio/video and longer load times), but I'll dig around and see if I can grab some stuff for you.