A Tenko is the strongest, most powerful form of a Nine-Tailed Fox where they have gained infinite wisdom and ascend to heaven. In essence, a deity. Let's see how things fare when Omni-Man faces one. Don't take the Summary Seriously, this is a prototype.

One-Shot. While he does change to a giant ape during a full moon with uncontrollable rage during such changes, he has another transformation that turns him into a Super Saiyan, which means that he needs to be a hero without looking at the full moon, but just how strong and powerful can he be against certain threats to the earth, will his strength go beyond SSJ1. Up For Adoption.

Naruto just being, well, being himself. Viltrumites? Villains? Heroes? Super Powers? The devil from hell? Geez. Why was he always dealing with this crap...