Up-tilt (Volcano Kick) has some mindgame potential. It's an attack with a 2 second (?) charge/delay but (a lesser known) vacuum effect.
I used it pretty often and racked quite a few kills (or at least, hits) against people today. If you start it when they're at a distance/dropping, they sometimes lose the sense of timing (that is, how long you've been holding your leg above your head) and resolve to stand in front of you shielding- and take the hit on their shield.
If someone's recovering and you use the up-tilt 2-3 Ganon-lengths from the edge, there's a good chance that they'll feel safe and then get sucked into the kick.
Along the same lines, if someone's near the edge of the 'projected' kick, they sometimes walk away just a bit, but get sucked back a bit juuust enough to get hit by the explosion.
Also, if an Ike tries to use Quick Draw (side B) on your Volcano Kick, he will hit you and go flying off the level. Go go vacuum.
I can't be too certain of this right now, but the delay after the actual kick doesn't seem to be too much (?) and if that's true, you can use it to bait people to 'punish' you, but reverse it on them instead.
any corrections/comments would be appreciated xD