I have a N64 modded for RGB....I also have a N64 that I use standard svideo....both are Jap N64's and the standard N64 with svideo is a much better and clearer picture....If I was you I would just buy a Svideo cable for a gamecube/N64......
CheapNeoGeo said:
Nope. You can however add rgb to a N64. Check gamesx.com they tell you how to do it. The original SNES outputs RGB.