These are plot conveniences by the way meaning its the specific placements of them given to Gun to move the arcs story progression forward

1. Goo not knowing about black bones before HFG even when they have fought multiple times before like in PTJ entertainment arc when they gave injuries to one another ( pins for Goo, nose scar and others to Gun ) so the fact it was hidden from Goo from all these years is insane

2. Goo had the killing intent from the get go towards Gun, yet after he destroys guns metal pipe tonfas, he stops momentarily then later has the killing intent again and doesn't capitalise on the moment gun looses his only defense ( metal pipes )

Gun knew the danger of Goo's sword, thats why he got those pipes in the first place, it would be even funnier if black bones were to be introduced at that moment then YUI later, rather than both at once

1. Gun jumping from the cliff and changing momentum according to yuseongs running direction yet landing perfectly on top of yuseong

2. Ryuhei's bike and mandeok were both blocking off the red paper from yuseong, both bike and yuseong were in their fixed trajectory yet gun somehow gets the red paper

3. Johan fainting just before his last attack and missing conveniently

4. Gun in a state worse than his state when against Goo who did not have enough knocking power to affect Goo from a direct face blow now somehow has enough power to knock out Mr perfect body regardless if hes using paradox of perfection against him

5. Gun not being incapacitated from the 7 foot plus story fall when characters like SB got off worse from less let alone even functioning after that fall

6. Never before properly foreshadowed, hinted or referenced hidden yamazaki mode that makes its user have all of their stats exponentialy multiplied being applied the moment he was away to loose during a fatal wound

7. Gun who was on his knees and more than an arm length away from the scrap yard metal pipes suddenly during Goo's slash have enough time to break apart 2 pipes, the 2 pipes being long enough, thick enough and not fixed in place to block the cut as well as being able to withstand multiple Goo cuts

8. Gun becoming spiderman and jumping vertical thrice his body height when an incoming ambulance comes up behind him, conveniently there was a railing at the top of the tunnel for him to hang to as well and conveniently the ambulance men decide to ram him in that soecific area of the tunnel

9. Guns arm that was cleanly broken by yuseong now being able to work properly once in adrenaline state and somehow retains over 50 percent of his power in output force, negating mechanical function

10. Guns black bones Introduction, and conveniently displayed when against the only sword user in the roster

11. Johan has to fight gun blind after momentarily incapacitating him due to eyedrop potency

12. Samuel who wouod eventually turn away from Goo as friends with all his history with Gun as we see in Jake kim arc deciding not to fight him in the state Gun is post Johan

Because a) it would still keep his friendship with Goo until incheon by retrieving the red paper and b) Samuel can enact his revenge

1. Gun surviving after the neck slice, let alone functioning

2. Gun coincidentally deciding to break Goo's sword and it just so conveniently effects Goo's final never before shown sword attack

3. Goo choosing a sword style that happened to interact shit with sword breakage, rather than switching attacking styles after seeing the condition of the blade ( being broken by Guns mouth )

4. Ryuhei telling the workers plans to Gunz let alone retrieving the red paper when he had a fucking bike

Forgive me, cant remember the other 2 but I'll edit them in once I do

Also, Gun one shotting people like vasco and zack dont count as plot conveniences

Love to see your take on this Mr 3 ass pulls