Superboy/man Prime?

I was just thinking and since theres so much discussion over him anyway I figured I'd go ahead and make a thread for it all.

Anyway discuss anything about SBP here but first I wanna know this.

If kryptonite radiation, which is what harms kryptonian's, can't effect SBP since its not from his universe then why can yellow and red sun radiation still effect him?

A wizard did it.

Maybe Kryptonian is different in every universe or somethin'

Before, red sun radiation didn't affect him (back during CoIE). It was retconned afterwards.

Well they had to think of some thing for the Supermen to beat him. Maybe kryptonite from his universe is just slightly different some how where as solar energy is logicaly the same no matter what universe you are in.