[Destroyman]

One thing you'll find common amongst Japanese action shows is when characters shout their attacks out loud. Now, whether this is a sound battle tactic is debatable, but what isn't debatable is that Japanese dudes shouting things is cool. So I pose this question to you, my Tokunation brothers, what is something you'd like to shout while kicking someone in the face (or whatever)?

Mine is "REEEVENGE...BREAKAAAH!!!"

[KamenRiderOOO]

Obviously OOO's "seiya!"

[Kamen Rider Meteor]

WWWWWWWWWWWWUUUUUUUUUUUUUUUUUUUTTTTTTTTTAAAAAAAAAAAHHHHHHHHHHHHHHHHHHH!!!!!!!!!!!!!!!!

Followed by a fluid stream of curse words

[Eric]

RIDER...KIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIICK!

Preceded by RIDER JUUUUUUUUUUUUUUUUUUUUUUUMP!

[Sentai]

Leon Vulcan Header! And then headbutt. Rinse and repeat as needed.

[Starscreamer]

I shout "Screamer Deceptive Punch!"
....then kick him and laugh at the shocked look...

[Galvantula]

I've always liked "In Yo Face!" Although a simple warcry may work as well.

[Den-O]

Hissastsu!

(slices you in half)

[KRiderZim]

"UCHU KITAAAAAAAAAAAAA!!!!!!"

or

"MAXSHIMUM DORIVE!"

or for simplicity's sake,

"TOH!"

[Watty]

I'm not sure what I'd say while doing the kicking, but I'd precede said kicking with my best Kabuto Zecter impression saying, "1, 2, 3... Rider Kick!" just before I roundhouse kick them in the noggin.