Tsunami
Prerequisites
none
Optional
some flexibility
The Tsunami is a stepover hook kick. You raise one leg up in a chambered position, like you would for a roundkick, but then you step over and throw a hook kick instead.
Tips
As with any other kick, you should always have a target in mind.
The hook kick is a really good setup for other tricks. Try to add a hook kick in front of any trick and see how it changes it.
If you're not that flexible, try to lean away from the kick more, to kick higher - and then get more flexible!
You can add a hook kick to the end of most trick to make it "hyperhooked". Tornado + Tsunami = Cheat 720 Double Pump.