Amazing post, but idk how you came to the conclusion that Falco wins that situation. lol Doing a frame perfect DJ to the ledge is really hard in its own right
Assuming both players do everything correct, Falco can get to the ledge safely and Marth can do nothing about it except maybe (depending if your reaction time is godlike or just average) a pivot dtilt, which imho is much, much harder to do than a frame perfect rejump plus DIing according to Marth's spacing.
To back up my claim that sweetspot DJ is easy:
1. Falco can do a shine to slow himself down, this makes the timing window much larger (at least 4 frames, depending on whether you shine just at the right frame or some frames too early): Of course shine stall gives Marth more time, but what can he do? If Marth runs off or edgehogs, Falco can airdodge on the stage.
2. To find out how good you are at frame perfect DJs, go to YS with Mario and perform no-impact landings by standing on the top platform, dropping down and DJing on frame 17 (16 according to debug mode's Y+down if you have access to it). If you do it just at the right frame, Mario will perform a very early no-impact landing. Now I haven't practiced this much, but after trying it a few times, I was able to do it three times in a row. I'm certain with some practice, being able to DJ frame perfect consistently is possible, especially if using the shine stall to make it even easier.
I don't really believe Falco can get around a proper dtilt. I feel like if you had Marth further back in that first pic so that only the biggest bubble was covering the ledge, there's no way Falco could get near it.
You mean like this?
For reference, here is the same frame with Marth having done a perfectly spaced pivot dtilt:
Now here's Falco having angled his DJ (used the same save state as in the two previous images, so all aerial control deviation is post-jump) backwards for 11 frames:
Yes, he does grab the ledge (5 frames later). You can clearly see he is out of Marth's dtilt reach if Marth's anticipates a neutral double jump.
To understand this situation, you need to be aware of all decisions that are possible. First, we need to discern between decisions/commitments before Falco's DJ and between decisions/commitments after his DJ.
1. Before Falco's DJ, Marth needs to choose his facing and positioning.
1.1 Facing: If he chooses to stay facing the stage (back towards Falco), he has the advantage of being able to perform a fast edgehog (and to counter without his "achilles heel", but I don't consider this a major argument). The downside is that he is not able to move closer to the ledge and still perform a dtilt that hits Falco if he goes all the way right. This is because the turn-around animation required before being able to walk to the right takes so long. (To be exact: If Marth starts walking just when Falco DJs – assuming a reaction time of one frame – Marth would be able to start his walk animation just when he already had to dtilt)
Dashing to the right out of the face-left stance is an option too, but only if you are able to do a pivot dtilt out of a dashdance, which is even harder than a "simple" pivot dtilt.
If Marth chooses to face right (towards the ledge), he has the advantage of being able to cover Falco if he is drawing his DJ to the right by walking towards him. The downside is that if Falco goes further left than where dtilt could hit him from where Marth is standing after his turnaround animation, Marth won't be able to hit him with dtilt in time, unless he is able to do a pivot dtilt.
1.2 Positioning: If Marth stands just where he would end up if he did a normal ledge-getup, he can hit Falco on his perfect DJ vulnerability frame if Falco is going all the way right.
If Marth stands further west, like in most of the screenshots I posted, he will only be able to hit a Falco going east if he is facing Falco already and walks towards him on reaction. Dashdance pivot dtilt is possible too, but again, I doubt there will ever be somebody who can do this.
Falco only needs to choose whether he DJs out of his fall or out of his shine. Apart from it being easier with shine, this doesn't make a difference in the options available afterwards. He can already choose to DI east or west, but it's not necessary.
2. After Falco's DJ, Falco needs to chose whether to move it close to the ledge or away from the ledge. Doing so is rather easy: A) If he sees Marth standing right, he moves left. B) If he sees Marth standing left, he moves right. C) If Marth is standing rather central, Falco moves in the opposite direction Marth is facing.
For Marth, things are again way more complicated. After Falco's DJ, he has 22 spare frames to do a dtilt. Dtilt comes out on frame 7, that leaves him 15 frames to maneuvre himself around and commit to a certain position. Now Marth's actions heavily depend on when Falco has to commit. The bad news for Marth is: Falco can commit as late as on the first frame of Marth's dtilt.
If that's unclear, here are some pictures:
The frame Marth presses dtilt.
If Falco doesn't hold back/forward from the previous picture's point on, he gets hit. If he holdss left, he gets hit too, but just barely.
If he holds right, he doesn't get hit.
If the same situation would have been made with Falco being the slightest increment more left, he could have evaded left, but not right. Then again, Falco players won't start moving just at the frame Marth presses dtilt, but probably a bit earlier, so if they know their spacing, they can always evade simply by reacting to Marth's positioning.
Now we can see, Falco has a very dynamic spacing that allows him to go where Marth can't reach him. Except with pivot dtilt. So is pivot dtilt worth mastering? I don't think so, because from the frame Marth starts to dash until dtilt's hitbubbles come out, it's 10 frames or more, depending on how far Marth needs to move. Marth's dashing is something his opponent can easily recognize and react accordingly. Marth dashes left? I (playing Falco) hold right. That's it.
On the other hand, Marth has a very hard time reacting to Falco's spacing. Recognizing the direction Falco is going is very hard if not impossible. Falco doesn't even need to alternate between Fjump and Bjump; with Fjump alone he can go both all the way right and close to the ledge.
TL;DR: If Falco knows what to look for and has a fast reaction time, he will never get hit by Marth's dtilt.
Bones0 said:
If you love doing this AR stuff and have some spare time, you should look into the claim that grabbing the ledge from different states changes how fast you can ledgedash. Sveet posted something from a Japanese smasher a while back that claimed if you grab the ledge from a DJ, your collision box was smaller than if you grabbed it from an up-B, which allowed you to airdodge onto the stage sooner.
Sounds interesting, I'll look into it. Does this apply for Falco only?