Now before you say "BUT MUH OMNIPOTENT BEINGS!!!", let me give you three irrefutable reasons why they could roflstomp anything and everything.
1) Can't stop the Rock
2) Can't flim-flam the Zim-Zam
3) Can't dodge the Rodge
Havel and Zimmerman would be invincible, while Rodge would just insta-kill everything.
NOTE: Shrek is the exception to this rule. He would destroy them easily.
-
Can't simmer the Zimmer