when you enter the first hallway open the door at the end of it because that unloads the room behind you allowing for the clip, then you just need to dive at the door frame in any way(core eject,just a regular dive etc) and make sure not the open the door because that will load the previous room back in

Edit: using the core eject is the most constistent for me

I'm trying to speedrun 4-4 p% and i can get the coin punches pretty consistently but a lot of the time v2 jumps in the air and then the coin is way too high to punch. Is there a way to make her not jump or is it just rng?

i'm pretty sure that the core nuke explosion has 2 hitboxes for V1 and the inner one hits for 35, so just nuke closer to yourself and it should do 35

You have to fire the rocket in the few frames that your camera is oob and then walljump into the rocket, its pretty precise. I can only do it consistently on 50% game speed