Flying Headbutt Technique

[Tiller420]

when im playing as luigi i like to use the flying headbutt as a useful trick......as someones coming back to the edge go behind them and as they land back on the land use it........always be pretty close to the person so theres no time to hit u.....it might not be that useful but most people arnt expecting that from luigi so i found it useful at times when im getting beat up

[TobiasXK]

As unexpected as that is, it really doesn't seem like a good idea...

[VilNess]

Hmm.. Im actually not sure what move that headbutt is, tilt up?

anyway. What I do when edgeguarding with luigi (in exception of some characters, like Jiggly and Link) is I go hanging on the ledge and force them not to sweetspot. Then they are suffering from their upB lag on the ground when I Wavedash to them from the edge (hard but possible) and Firepunch them to usually a KO.
Luigi can really Kill a mostly horizontal recovering Pikachu like this.