This is the best board in the world you guys! I don't post often here, but I've been reading alot lately.
My tag i K1kk0m4n. I'm currently ranked as the 3rd best Ganondorf in Europe, when you count both Ganon mains and secondaries.
I have a question about edgeguarding pika. Most posts in here seem to be under the impression that it is almost better to give pika the ledge and apply corner pressure. Has anyone tried to edgeguard pika like Sheik? I'm having pretty smooth success with it. I either time a regular get up or the getup roll to force Pika to land on stage. It doesn't work all the time, but it's better than nothing.
I either do that or try to aerial edgeguard basically...
EDIT: Can someone explain or link to a good explanation of "untechable stomp"? And does it work in PAL? I'm not really sure how this looks like in action or why it's untechable...
Pikachu is actually SUPER easy to edgeguard. The trick is to put a hitbox where he changes directions in his up-B (if you can). If you can't, treating him like Sheik is actually a really good way to look at it, except that Pikcahu doesn't have much ending lag if he doesn't land directly on the ground. Sheik always has that ridiculously long landing, but Pikachu gets a very short version if his animation ends above the stage. What Axe goes for, for example, if he can't get ledge, is to end his up-b one frame before he hits the stage, because of how much shorter the end lag is. If you can force that, though, you do get the one frame of elongated hitbox on Pikachu, meaning a perfectly-timed ledgehop uair will hit if he's too close. You only get one frame to hit him, though.
What I would recommend (and what I usually go for) is to put a hitbox in front of the ledge, like a dair or low bair, and force him to come on stage, then give him a quick jab-uair. It's not a combo at mid-high%s, but it's reasonably reliable. Sometimes it's possible to get the waveland-ftilt, which can kill around 55% on Yoshi's, with some really bad DI from Pikachu.
The biggest thing with Pikachu is to respect him on the ledge. A reverse-tailspike means a dead Ganon, and it's remarkably easy to do with Pika's ledgehop uair if you're standing to close. They could also mix it up with ledgedash usmash, and theirs is stronger than Fox's. Pikachu also doesn't have an awful ledge attack (<100%), but that's mostly just annoying. Giving Pikachu ledge then applying some pressure with a DD on the platform wouldn't be a bad idea. Whenever he gets up, you can go for a drop through-bair.
Honestly, you really don't
need to edgeguard Pikachu because of how light he is. By that I mean if a uair hits him far enough for you to edgeguard, the next bair will probably kill.
The whole Pikachu matchup is Pikachu running around, looking to land a single nair/uair to start a combo (that only does like 25% if you DI properly), and Ganon basically standing there jabbing him out of it until he messes up enough to land a meaty hit. Fishing for hits on Pikachu is about as safe as fishing for hits against Peach. Except instead of dsmash, you get fox-usmashed. (Yes, I am simplifying, but you get the idea)
Oh, and if you're offstage getting edgeguarded, good luck. Nair, tailspike, dair, thunder jolt, even thunder and skull bash if they're swagging out, all easily end in dead Ganon. Pikachu can edgeguard probably better than you can (one of the few characters that's even debatable about).
Ace is the master of the untechable stomp, but there were a few posts on it probably 25 pages ago, along with a discussion on the mechanics. I don't remember the explanation, unfortunately.