@So-chan Pretty strong to say the least. Or at the very least his stomach is, which you'll see in a little scene right after the monster association arc.
He's the one who come's back after the arc ends and finishes off Evil Water after Saitama smacks it in front of everyone and leaves it for dead, because he suspected it might still be alive.
I am totally a Pig God fan. On top of his awesome . . . uh . . . power, he's a good guy and a real pro. Like that time @InfernalDrake117 mentioned . . . he's not just killing whatever's in front of him, he's doing his best to keep people safe.