So looking at the profile and what you just told me i'm not sure how pizzaface is supposed to be a threat...
Pizza Guy has a 3.2x ap/durability advantage, which can and will be boosted even higher with perk abilities.
Pizza guy also has multiple methods of mobility through perks ranging from dashes, double jumps, slides, speed amps, and more, while pizzaface just has his supersonic+ travel speed.
In Speed equal, the combat speed of that faster character is assumed to be equalized to the combat speed of the slower character, while every other speed the faster character has is reduced by the same multiplier. In this context, to figure out which character has the faster mobility option, we need to figure out how much faster their mobility is compared to their combat speed. Both are supersonic, so speed equal would make their combat speed supersonic.
Supersonic+ starts at Mach 2.5, so pizzafaces' travel speed would be 2.5x faster than his own combat speed. Pizza guys grapplehook
is hitscan in comparison to his own combat speed, meaning it blitzes things that scale to his combat speed. A 2.5x speed difference isn't enough to where something becomes so fast it appears to just spawn on you, so pizza guys' grappling hook alone should be faster, and that's going to be stacked ontop of all the other things he can do.
Perks are also an issue, we have things like "do you like hurting" that would lower pizzafaces max hp, we have sierra which makes it to where every time pizzaface decides to attack he has a 15% chance to get paralyzed by fear hax for a couple of seconds, ricochet gives free auto aim for shooting at a thrown object, Open wounds gives a 10% chance to stick a weakpoint on him to dura neg him, overcharge would allow him to shoot indefinitely without even needing to reload while increasing his firerate by 50% to blitz him even more. Iron-Will would straight up allow pizza guy a 15% chance to just pull out low-godly resurrection (ik it says mid-godly, but I plan on downgrading it to just an enhanced form of low-godly) and resurrect himself if he were to somehow die. Even his armour stat (which I plan on buffing) makes it difficult for pizzaface to actually deal damage since he has to get pass that before his attacks actually harm pizza guy.
We also have to talk about pizza guy's luck stat. Thanks to perks, Pizzaguys' luck stat is going to increase over the course of the fight making it more likely for all of his chance based shenanigans to happen and potentially even decresing chance any chance based shenenigans from pizzafaces part. Remember that 15% fear hax proc that prevents him from moving? That's gonna get increased to 20%, 25%, and more until it maxes out and becomes guranteed, the same goes for any other perc that needs a percent chance. Everything is just going to get skewed in his favor basically, and if pizzaface can't kill him in time, he'll just get haxxed.
Pizzaface has his intangibility, which apparently needs him to be physically moving to pull off. At the start of the fight pizzaguys guns would just blitz him by virtue of
hitscan, allowing him to already get shots off before pizzaface actually does anything, then while pizzaface is moving, the only thing pizzaguy needs to really do is wait for him to get fear haxed by Sierra and then just keep shooting at him while he's stunned. Pizza Guy already has experience dealing with window-based enemies like ghouls, so figuring the window between when he's interactable and when he isn't won't be very hard for him. Pizzaface's summons all lack the range to actually get near or actually tag pizzaguy, nor do they have answers to much of, if any of his perks shenanigans. In fact, I'd go as far as to say the summons help pizza guy if anything. When pizza guy inevitably kills one of those guys
he has the option to absorb their soul which
drav would use to automatically ressurect him in the event he was to somehow die, and considering the fact he can use his grapple hook to
grab things from a distance, you can see how summons go against Pizzaface here.
Overall, I just see pizzaguy either outranging him or just abusing perks for an easy win.