In spite of all of Robert's tap dancing, there's an easy explanation.
Because of the purity of Bowser's essence.
Bowser's strength is as the strength of ten, because his goddamned heart is pure.
It is hard to keep a good man down, even in cyberspace.
I wish I hadn't had to be the one to point out these obvious facts.
Arf (Yer pure as the driven slush, Bow! Shut the hell up!!)