Gamma Clap: Once per range attack, when Hulk or an adjacent friendly character would be hit, you may roll 2d6. If you do and your roll is equal to or greater than the attacker's finalized attack roll, the attack automatically misses all targets and after resolutions deal 1 penetrating damage to the attacker. Protected: Pulse Wave.

So is this as simple as it seems?
After the opponent makes a ranged attack you roll 2d6 and compare the rolls?
So if the opponent attacking Hulk rolls an 8 if you match of beat that 8 gamma clap is triggered?

And it works against mind control attacks?

It's as simple as it sounds. It works against anything that's a range attack, including mind control.

Okay, instead of creating a new thread, I just want clarification.

(Defense) Hulk Angry!: STOP. Regeneration. Impervious, but succeeds on 4-6 and can reduce penetrating damage. // Hulk has SAFEGUARD: Outwit.

Does Hulk only reduce penetrating damage when rolling? So would Mystics hurt him. I personally don't think so looking at it now, but that's the way my venue interpreted it.
I don't have the rules handy to quote Imperv...

IMPERVIOUS Reduce damage taken by 2. // When this character would take damage from an attack, you may roll a d6.5 -6 : Damage taken is reduced to 0.

I think he reduces penetrating damage regardless of role, but it is really awkwardly stated, and could be read either way.

My understanding is that on those clicks he can reduced penetrating damage from any game effect, attack or otherwise.

It's clear what was intended. Poorly worded but should work that way.

The comma is key. impervious, but...

The comma and but note the additions to how impervious works in this case.

Thanks guys.

Instead of making a new thread I’ll just ask the question here so I’m new. What does it mean when it says STOP. Regeneration. ? Hulk doesn’t have a regeneration click so I’m confused by what this mean.

it means he gets regeneration.
When a power is listed in a special power, its means they get said power.

So whenever the impervious click shows up, you stop clicking and and can use regeneration? Or does he always have regeneration whenever?

When HULK ANGRY! shows up you stop turning the dial and Hulk gains Protection: Outwit and Protection: Pulse Wave (powers that are part of HULK ANGRY! can't affect by Outwit or Pulse Wave). He also can use Regeneration and Special Impervious.

He can do all this wile HULK ANGRY! is showing on his dial.

Gotcha! So theres an actual dial that is HULK ANGRY! I did not know this. Thank you for the clarifcation!

Also, remember the STOPs lower the amount clicks healed by Rengeration and Support by 1

STOP: When this click is revealed due to damage taken from an opponent’s
attack, stop turning the dial. When this character would be healed by
Regeneration or Support, it’s healed 1 less click. Protected: Outwit,
Pulse Wave.