Eggyhead is really strong because his blood/yolk is actually made of Galactic Gold.

Nearly indestructible

Every layer of molecules multiplies it's strength by five

Yes, this somehow exists irl. Not completely sure how it works but pretty soon we're gonna have indestructible phones

wait why does the earth have a straight face he can destroy plastic

oh wait

Oh wait

Also earth is only this strong because the curves in her design distribute the force of most impacts which amplifies the durability of 2d plastic