The one and only.
Dragon Ball's Potential Man (Technically the OG but y'know, it started with Megumi so).
Naruto's Potential Man.
Bleach's Potential Man.
One Piece's most infamous Potential Man.
One Piece's second Potential Man.
JoJo's Potential Man.
Chainsaw Man's Potential Woman
Pretty sure the first two guns i can think off of this question would be the Havoc and the Sirin from BO7 and BO6 respectively.
The Havoc is more or less a meme gun that can also get some good value in Multiplayer off of camping chokepoints, and can be useful with the prestige magazine if you are able to spam it at a group, but in Zombies you can legitimately delete hordes off of existence with only a couple of nades, and the prestige mag also helps a lot.
While the Sirin is an okay-ish SMG secondary that can work if you are in a pickle, it turns into a genuinely OP gun in Zombies due to both the damage output you can deal to hordes and elites, and also the ammo efficiency the gun has due to it having a considerably lower ROF than actual SMGs.
Pretty sure the #1 matchup that i can currently think off of this question would be Madara Uchiha from Naruto VS Ryomen Sukuna from JJK.
On paper they sound really great; The strongest legends of the past that dominated almost everyone on their eras, that now were brought back to life due to long-time schemers to get their plans going (Black Zetsu giving Kabuto Madara's DNA to be able to use Edo Tensei and Kenjaku doing Kenjaku things for the next step in human evolution) and imediatly become the #1 threat of their verses and fade almost everyone alive until they are defeated.
But on both execution its' a complete wash in Madara's favour due to how grossly powerful the Naruto verse is compared to the JJK verse in terms of stats, but also how powerful Madara's bag is when compared to Sukuna's (Madara's goated ninjutsu, his MS and most specially his Susano'o are much better than Sukuna's Shrine and Ten Shadows, and thats without including the Rinnegan for Madara), and thats not even getting into how Madara speedblitzing Sukuna to oblivion is a legit wincon due to the speed disparity between verses (JJK verse was damned to be capped near Mach 3 due to Naoya before Dabura raised the cap for himself going sublight in Modulo, while Madara was shown to be relative / better than KCM2 Naruto which is one of the fastest characters in the verse at that point).
So basically Madara takes the fight no diff no matter what version of Sukuna is facing him lol.
1- Edo Itachi
2- Alive Tobirama
3- Edo Minato
4- WM Obito
5- SM Kabuto
My first (personally) owned device is this beauty right here in the Retroid Pocket 3+.
At first i got it when it was still the hottest thing around before Retroid got the 4 and 4 pro out, and i was enthralled to buy one until i realized how broke i was, so i kept using my 3+ for months until stick drift began to kick my ass so much i couldnt play it anymore so i shelved it for 2 years.
And then around a month back or so i decided to bite the bullet and get my old console back after my Trimui Smart Pro replacement began to experience shoulder button failure so bad it wouldnt register, and after a while the 3 plus stopped having stick drift and also reminded me how great it is even on current times where almost everyone can play PC games on smartphone sized handhelds.
So yeah, i shelved my TSP and now carry the RP3+ as my EDC handheld nowadays.
Like, besides all of the slander Fujimoto deserves for absolutely dropping hot dogshit after he peaked with Part 1, i still find it wilf how from one panel to another Fami gets unceremoniously dropped off from the manga and is never seen again after that.
Like, she was deadass from one panel to another helping Pochita get patched up, told him to incap Lil' D and Blade guy, got her head chopped off, and isn't ever seen again after that, and its' even more ridiculous how even Death was able to get back from that decapitation attempt from Pochita for a little bit before Yoru tried to transfigure her into a sword and Pochita devoured her.
My girl was done dirty by Fuji, man.
Round 1: 4 Tails Naruto from the Orochimaru fight in the Tenchi Bridge arc VS Ryomen Sukuna inside of Yuji's body from the Shibuya Incident arc with only Shrine.
Round 2: 6 Tails Naruto from the Pain Arc VS Sukuna inside of Megumi's body from his fight against Gojo (FROM THE START OF THE FIGHT) w/ Ten Shadows and Shrine.