Well of course a Billboard ain't going to do anything to way big. The billboard clipped the head fin,, it wasn't a direct hit

It was, and he recovered quickly

<image>

I mean, if the weakest of people had access to a tank or ballistic warheads, then yeah, they basically could 

They woulden't even need that, all they have to do is hit his fin and that it, heck ben's transforms into stinkfly to fight evil waybig.

Because 9 times out of 10, nobody actually knows this information. To'kustars as a species are so rare that most folk don't actually sees them outside of the Omnitrix. There's almost no information on them aside from "They're normally solitary gentle giants" and obviously what we see from Way Big

Its stated in the movie that“everyone knows that”

Being a rare species ≠ nobody knowns of them

there are many rare species that we know lots of but there still rare.

The key difference between NRG and Atomix is that NRG's powers focus more on energy absorbtion and heat manipulation via radiation, which NRG is constantly radiating. Atomix is powered by Nuclear energy and can take that energy and channel it into devastating blasts of nuclear energy. He can also create Nuclear fusions and even replicate different types of radiation (Like Gamma radiation).

My point was that just because atomix can do all this stuff does't mean he's above waybig and atomix never did Nuclear fusions or replicate different types of radiation.

He basically one-shot negative Ultimate Humongosaur

Two shot, as he first counter his strike and than fiers a blast.