When I press Start while booting my NTSC gamecube DOL 001 the xenogc the screen is b&w. is it supposed to be color or is it normal? the screen changes as follows: Version 1.01 NTSC Revision 1.0 Drive Version 6 All your bases Belong to us.
I recently had a xeno installed in a PAL cube & it appears the same as what you described above. So to answer your q', yes it is meant to be b&w.