I don't remix much, mostly due to a lack of motivation.
But this is something I'd like to get into. Naturally, having the responsibility of contributing to this project is more than enough motivation for me (I'm very poorly self-motivated, but very well externally-motivated).
Of course, catch-22 comes around: my lack of motivation means I have nothing to show you in terms of audition material suck.
actually, that may not be totally true. although I have no game remixes, I do have some other stuff. I'll get back to you with that another time (it's late now, and I'm tired)
vgmusic.com tends to have good MIDIs of video game music. go there.
I actually have some midi's for the game, downloaded from there.
Post this in the remixers forum, too, for greater response. I, for instance, rarely check the GenDisc forum, but frequently visit Remixing (and Unmod).
It's relevant to do so (in fact that's probably where this belongs, really...).