No answers?
Anyways, I managed to get Sonic working with the I-Net Fixer. It was easier as I supposed.
As for Star Gladiator: I tested that game on a Pal-DC via Scart-Cable (I only have a Jap Dreamcast and an RGB-Cable) along with Looney Toons Space Racing, and both worked fine.
So I fear the games need to be patched for RGB. Unfortunately I could find any patch for them.
Does anybody have one for these? Or is it possible to enable RGB-Support another way?
Any help would be appreciated...