Genos has higher AP and already far upscales from it and has some good AP amps so yes. He's capable of literally one-shotting earlier versions himself and enemies that he fought before that scale above Gun Devil's value.
First, Saitama was literally so fast that Genos was fighting an afterimage of him the entire time, that's how fast he was. So my point still remains that at a range close enough for Gun Devil not to get blitzed, Genos won't be getting blitzed either.
Afterimages that we don't actually know how far behind, and again, Genos could only spot Saitama moving in a straight line after a hard time concentrating, on a single target at that, against 100 or so, he would have a really hard time trying to keep up.
Second, Gun Devil's reactions already scale to nearly 3x Genos' base speed. Genos is capable of blitzing and mocking people who were faster than his base with just one of his amps, let alone two. You are the one that has to prove that Gun Devil's reactions can keep up, not me. Remember, his superior speed is just attack speed.
Why would reactions even matter here? Against the allmighty Danmaku? Gun Devil could easily spot Makima, as the calc said, 477km away, with Danmaku he only needs to know Genos's general direction to just instantly blast him with barrages, if Genos wastes time trying to fly around in a circle or something, Gun Devil could actually just fly away and outspeeds Genos.
Third, Genos absolutely would not run out of energy, what gave you that impression? Genos has vasts energy reserves and literally went on a gauntlet and rid an entire hundred square kilometer city worth of it's monsters by himself without running out. You're just making baseless claims now.
Genos do have vast energy reserves, but getting rid of monsters around the city does not say anything much. Most of the monsters are fodders, with some strong ones also getting blasted instantly or wasted little of Genos's energy like Cockroach who he only used 1 below ss1 IC tier attack on after using sticky glue on him. And remember, his attacks on the meteor (which drains his energy under like 30 seconds or something) was only large town level, and he has to deal with 100 town level attacks, each scales to 1/10 of that feat of his, Genos will drain energy at an extreme rate. Like if we give G4 Genos about 100 times his energy cap in ss1 and he runs out of energy on a 300 Kilotons attack in about, let's be generous and say 10 seconds as moments after he stops, be stated that 9 seconds left before impact, that's a lot of time as Genos stated before he took the shot (that requires him at least 10 seconds to prepare) that there are 33 seconds left, and took him at least 2 seconds after he stop shooting to say that phrase, then if Genos were to defend against 100 shots per second, he'd run out of energy in just 300 seconds merely trying to defend himself (and it gets worse and worse the closer he is), and that's minus the energy consumption in his acceleration mode which would be WAY WORSE.
And yea, when he reaches Gun Devil, the story wouldn't just end there, Gun could and would fly away, leaving low energy Genos there. We didn't even account for him overheating either, like going into acceleration mode while dealing with hundreds of attacks on his level is NOT gonna look good for him.
Lastly, I did not say that Genos would be dodging bullets. I said he will be destroying them with his attacks that are much stronger than the AP and durability of those bullets. As well as faster than the firing rate due to having much higher combat speed than Gun Devil has reaction speed.
reaction speed? No, Gun Devil's firing speed does not scales to it's reaction speed, it's literally Danmaku.
Whether Genos's attack could hit Gun Devil's bullets and get rid of all of them effectively or not is still questionable, I don't see anything listed on his profile to support this. The only reliable attack he could use is his fists, because if he keeps blasting energy blast that is enough to get rid of Gun's bullets then he will run out of energy really quick, as I said.
What you're not understanding is that since you starting them 500km away, all of the bullets are coming at Genos
in a straight line. It's not some sort of unavoidable wave or omnidirectional danmaku. That would only be the case if she shot in the sky to rain from above, in which Genos could easily avoid since the bullet speed would then be determined by gravity rather than muzzle velocity.
It doesn't matter if they're in a straight line, they're small projectiles flying at extreme speed, and not entirely in a complete straight line either. Genos has to actually aim to get rid of them, and if he carelessly dodge (as I said, limited movement), stray bullets (which is canon in Gun Devil vs Makima fight) could easily hit him.
Genos' casual
Machine Gun Blow is comparable to
Death Gatling's Meteor Shower. He'll be fine.
Death Gatling is a literal fodder, like what is even the comparison here? Quantity != quality + quantity, plus in the manga there isn't really THAT many bullets either, Gun Devil could dish out that much in 2 seconds top.
What is this based on? They are moving at Massively Hypersonic speeds. You really think Genos will run out of energy in 34 seconds?
34 seconds IF Gun Devil just stays there and not moving. Gun is 100% capable of constantly moving while making shots, it's just that against Makima who doesn't even move, it finds no reason to do so, staying at one place would be better.
Cities in OPM are several tens to hundreds of kilometers.
doesn't mean that Genos could sense Mosquito throughout all of city Z (visually it's not even that impressive too, Mosquito wasn't that far away, Genos has range attack and can also fly to chase her), and his massive blast was only 500m, that alone has made this way less impressive than you thought.
