Well...
I've been attampting a few songs from games that weren't too popular, i think, but they all require way more skill than i have with remixing, but here's what i have.
Target Earth/Assault Suits Leynos: Intro Theme, Stage 1, Final Boss Theme
Gunstar Heroes: Theme
Graduis III and IV: Game Select Music/Grand Youth 2000, Gradius III Crystal Stage, Gradius IV Demeter, Gradius IV Feiton, Gradius IV Apollon
I never got anywhere with any of these, all i really did is start the beginnings of them or parts that were easy to fugure out.