A little addition to the MDI section; holding left and right will always end in a grab facing right. In the gfy I travel left as I grabbecause I did left input. then added right then grabbed(distance varies per char speed, friction) and samus always has the "dash grab" effect.

Charge Shot Increased Pushback
Example: https://www.youtube.com/watch?v=YNuv5LmkJbU
Character that can perform: Samus
Description: The pushback force on Samus' aerial Charge Shot will increase greatly.
Method: Spam uncharged charged shots for at least 15 seconds. Release an aerial charge shot to rid of the powerful charge shot aka the Charge Stacking technique. Notice how Samus is pushed back only slightly upon release of the shot. Now do another aerial shot and you will be shot back at incredible speeds!

already in this thread

Can you put the Falling Up-B for Sub-Universal Techniques? I don't remember how to do it exactly.

And Utilt Out Of Shield as well.

Just upb and hold down within like 10 frames of coming out of hitstun, and not all chars can do it

https://www.twitch.tv/doqk_/v/100443877
At around 1:17:15 I do a Nayru's Love, but partway through (collision detection bug?) I kinda sorta don't fall and stay just floating through the battlefield platform.

Working on consistently reproducing it.

[b]Name[b/] Spindash Uncurl
Example(s): https://www.youtube.com/watch?v=3qWvKGFf0Ys
Characters that can perform:
Description: Basically, just uncurling in midair.
Method: After you charge your spindash, jump then hold your special button then press your down key.

Universal tech: Dashdance Momentum Cancel (or DMCA for short )
Description: When dashdancing, there is a single frame where you character turns around and has a momentum of 0. If you use an attack or taunt on this exact frame, you will cancel the dashdance and instead do your attack. Every SSF2 fan will fear DMCAs.
What it's useful for: Spacing Fsmashes as Marth, showing off techskill by cancelling it with a taunt

Sonic exclusive tech: Slow spindash
Video:
This has been a relatively well-guarded secret amongst the (dare I mention it?) SSF2 discord, but if you hold the jump button while charging and using Sonic's spindash, you will do the Slow Spindash. It hits once per frame and moves more slowly than the normal spindash. You have to hold jump throughout the whole thing to do it, but it's completely broken.

I think what you refer to as DMCA's are commonly known (in the Smash community) as pivoting? I don't know if I'm reading it right: pivoting is using the 1 frame of standstill in the middle of a dash-dance to do a move.

I don't think that this counts as a "advanced technique", but I might as well post it here since I barely see people use it.

Universal "Tech": Turnaround NeutralB
Description: While in midair, by pressing the opposite direction of what you're looking, then release the button and press NeutralB, the attack will be shot in the same direction as the input (in other words, backwards).
Note: This is not a B-Reverse, since it doesn't change your momentum in the air.
What it's useful for: This is very handy with some characters that have some kind of projectile, since you can do a runaway Turnaround to create some space between you and your opponent. There is also the surprise factor with some powerful neutralBs like DK's.

Example:

It's very simple to do so maybe it shouldn't be considered "advanced" but whatever

dw Drarky literally everyone better know how to do that, not because of how easy it is but because virtually every character benefits from this (there are only a handful where it barely matters, like Falcon or Zelda). Apparently OP doesn't have it down, but I included it in a post of mine in the similar thread "The Many Techniques of SSF2", so that's proof that ppl should know about it even if they don't do it (in online, people probably too liable to end up side-b'ing so they don't do it haha). Also its a staple tech from the main games for years so yeah

Falcos in beta are going to be using the crap out of this tho

Aww. I liked my name better. Well, rip the DMCA then. It's just a pivot.

how has no one mentioned DK's DownB antics in the air? https://gfycat.com/ChiefSingleIberiannase
DK benefits very much from being able to Bair without having to RAR

I'm pretty sure we've touched on that in the DK thread

Just wondering, is this pivoting:


If it's not, then I have no clue what I did