Really, really cool - I've seen that cartoon, and this is a very good representation of the character.
I do, however, think he's too powerful right now - yes, he did go toe to toe with Superman, but he did lose, and really, a lot of top level guys could go toe to toe with Superman and lose, and not end up 420 points, which I don't think this guy deserves to be. My recommendations are just to tone him down a bit - reduce his Life, Attack and Defence by one each, give him one fewer Energy Marker, make Containment Suit Rupture 3 + X Spaces and 1 + X Wounds, make his special subtract 1 from a Kryptonian's defence (I know he controlled Yellow Sun radiation, but I don't think it should hurt Kryptonians as much as Kryptonite), and make Atomic Blast remove one marker at a time for the full hit (giving this guy those markers is the only real way of hurting him - they're too easy to bun off right now, and in fact make him more powerful), then test him around 350 Points (just a rough guess). Do that, and I think he'd be awesome - I'd probably end up adding him to my collection! He's great! You're design's made me excited about a character that, in the cartoons, I really, really didn't care about. Great job!