Since you obviously like 8-64bit style game music, ever heard of this Group/Album?
(Great Job On Zwiehander BTW)
Group: Mind.In.A.Box
Album: R.E.T.R.O
http://www.youtube.com/watch?v=fuqlKsXAs9A
http://www.youtube.com/watch?v=Ob02HpNzOCY
http://www.youtube.com/watch?v=UEOLPDOKdtY
Enjoy!