It's janky, dangerous, and unreliable, but if you're good at sweetspotting the ledge you can get some strange gimps by angling yourself downward toward the ledge when you're recovering high (like a Falco/Fox sweetspotting the ledge in Melee). If an opponent jumps to try to get you and you catch them with any hitbox between hits 2-11, you'll grab the ledge and your opponent will be sent under the stage at high speed due to the autolink angle of the hits (which causes them to be pushed in whatever direction you're going--down diagonally, in this case) and them falling out of it. It's risky and takes a lot of precision, but I've gotten kills at like 10% against people this way (I almost took a game off of FOW's Ness at one of our weeklies like this lol).
Just don't try this move against Mario (FLUDD), Rosalina/Villager (they can absorb it), or characters with a Counter (and you should be avoiding having to use PKT2 to recover against them already, anyway)