Walking ledge getup: Once thought to be Marth-exclusive, and dash-only getup, it was found out that it can be done with only a walk, meaning many more options (since walking = neutral position) and NOT Marth-exclusive.
However, the problem was that it was super inconsistent, and hard to do.
That being said, I found a way to do it consistently.
If you're in Lylat Cruise, and the stage is tilted upwards towards you as you hang from the ledge, you can let go by pressing back, then press forward and jump immediately and you'll just walk onto the stage.
It can be done in other stages, but takes more timing and practice.
That being said, the character I've found that can do it are: Marth, Zelda, Dark Pit (presumably Pit as well) and Little Mac.
Sheik, Mario, Rosa, Captain Falcon, and Luigi cannot.
Seems only low and mid tiers can....o3o Maybe it was Sakurai's gift to non-high tiers, giving them a pseudo-waveland XD