I thought that was to some extent explained. Didn't they say like it had something to do with the Up-B and Dair canceling each others momentum or something? In any case, I remember this well and I think it should definitely go along side the other mysteries because it has never been re-created and let's face it, it's just plain wierd. You gotta love this sorta thing.
Ok looking at the vid now, I think I can explain it 0_o
Firts hit was a spike, it was meteor canceled(?) instantly and so the wolf went into another hit, then the Toon fast falled the pogo so he didn't bounce off the wolf and then simply fell and hit him again. It's all possible. The hardest part would be the meteor cancel done instantly, but other then that, I'd say that it should be re-create able.
No wait, there's more to it then that. The wolf was spiked, then hit with a pogo like atack, then spiked again in no time and for some reason Toon didn't pogo on the spike. Weirdest thing is, Toon turned around somwhere in the middle. Ok so he turned around because he got hit, that would be the 1%, from the meteor canceled Up-B?
Hmm.
Final go.
Ok, Toon spikes, Wolf instantly meteor cancels (if it wasn't a meteor cancel, then I have no idea why he didn't get spiked the first time), so Toon recieves 1% from Wolf's Up-B which turns him around and knocks him out of the Dair. Then Toon instantly does another Dair because I can't imagine a 1% attack giving much hitstun, but it gives him just enough momentum to make Toon slowly fall the Dair which we all know still spikes and doesn't pogo on the spike. This hits Wolf and sends him to the ground but Toon continues to slowly fall (as expected). Wolf fails to tech (tut tut) and is hit by Dair again.
Yeah. I think that's everything wierd accounted for. The only thing I'm not too sure on is why Wolf didn't get spiked the first time. If it's possible to meteor cancel that early, then yes, this whole thing is possible, has been explained and should be able to be re-created.
I'll try to re-create it with my mate on Friday and if I can't get it to work, I'll add it as a mystery. But I think I've explained it now at least.
Edit: Oh another thing. I'm now convinced that the second spike was a momentum Dair because he didn't bob up at the start. Yep.
I'll go now.