i have a question, in sonic 3 is hyper sonic's eyes green or black if they were black that means they stick to sonic original eye colour which would make the modern hyper sonic's eyes green like in this picture but if they were green then like super sonic they would have been changed to red so which is it?
Well I know of three theories. One is the one you first proposed, that the green eye color remains. The second, demonstrated in Nazo Unleashed, is that like Super, his eyes turn red (I support this one). The third, in Sonic RPG episode 9, is that his eyes turn grayish light blue. Then again, there his fur color is permanently light gray and he wasn't using the actual Master Emerald (it was a sapphire the same color as his eyes, so in a way it's an advocate of the green eye theory), so I don't know if that's valid.