Class: Doubleleg
Alternate names: Armada dupla
Description: A jump where the legs are brought up straight and together in an arc. This move resembles a layed back jump spin kick with both legs plastered together.
Variations:
Prerequisites: 360 crescent
Equivalent variations: 540 single leg, Crescent single leg, Crescent-540 single leg
Advanced variations: Kim do kick, Split double leg, Valera flash, Doubleleg 180 twist, Doubleleg 360 twist (gyro)
Move preview: A single short clip or multiple short clips for observing the skill.
The Double leg exampler: A video overview of the move with a narrated walk-through.Lucky for you, there are some great methods available for building a doubleleg. Unlike most tricks, where you just gotta dish out the crashes for success, you can start off with a few different setups that make the learning process easier. Let's talk about them.
How does this method work? Well, it primes the motion of the move by starting with a lower difficulty. Just imagine how much quicker you can swing a rod if it's half a meter long, compared to one that's four meters long. It takes more force to initiate the swing of the longer rod, and it takes longer to travel the same distance. The doubleleg is the same way. It's easier to doubleleg when only half of your legs are going through. When fully extended, more force is needed to complete the motion. I found this method valuable, in fact, this is what helped me the most when learning the move. How do you do it? Easy, just bend your knees at the joint and doubleleg! Gradually extend them as it gets easier until you are doing the real deal.
I didn't have the luxury or the brains to consider using this method, and the bent knee method was already working well for me, so I didn't use this method. But it works, a lot of people have had success with this method. Find or set up a barrier you can doubleleg over. Preferably, something you can literally roll over, the higher the better. In fact, this will not work if the object is too low. Now, just start rolling over it with the legs together. The height of the object must soon be tall enough so you have to jump to even get over it. Gradually jump more and rely on the object less and less until you begin clearing it without touching it. It's like a spotter! Sort of...
I want to try it, but I got nothing to roll over.
Hmmm.. How about a park trash can with a pillow on top? A small and sturdy table? A bunch of karate kicking pads stacked? These might work, but I think a friend will work the best. Have him or her bend over and roll over them! Best of all, they are easily adjustable and can be encouraging. They can even rise as you roll over to help push you along if it's needed. If you don't have any friends, buy one! You might be one of the rare and determined people who have found a way to buy their double leg. Just get creative and get things going!
How's this for a visual example? BLAST IT! BLAST IT ALL! Take a look for yourself. Besides the differing angles of entry and goals, these two moves do have some things in common. You don't have to start from scratch on a doubleleg, try modifying your 360 crescent to help your nail the doubleleg. I wouldn't recommend transforming your 360 kick into a doubleleg, but I would recommend taking some things from it and putting them to use in your doubleleg.
Instead of entering it towards the front or angled, enter the move from the side and jump up as if you were going to kick towards the front. Instead of kicking - pull more with your upper body and get both legs up in front of you. Catch them together and tighten up to continue the arch and land. Experiment with it.
Bent doubleleg, Double legging over stuff, and learning it as a modified 360 kick. Gotcha - three methods which can all be put to some use if needed.
Yes! It's me nearly naked in the wilderness! I will be double legging towards my left side.
Here we go!
Quite a few different step ups are allowed in this move. Some people just like running into it, and others do otherwise. I copied this execution a long time ago, it was what Cody from trick buster's old website (No longer around as far as I'm aware) was using. He did this foot shuffle thing, I watched, and then I copied it almost exactly as he was doing it. THE SHUFFLE TAKEOFF LIVES ON CODY! IT LIVES ON! HAHAHAHAHA! Actually, I'm quite sure many others are using it too.
Anyway, after shuffling enough momentum forward, I prepare to pounce on my prey and kill it! I will doubleleg pounce on it, dazing it, I will rip it's guts out and eat the organ meat! PROTEEEIN!
Now the dig. Get your arms up ready for takeoff. Everybody must do this step. You can raise them up differently, but you must get them ready to jump up and over.
Here is how the punch takeoff works. Get your feet way out in front of you and dig. Just like any jump, you dig! Your arms up and body crouched, you will punch the ever loving crap out of the ground to jump at the same time you begin looking over your shoulder and ripping your arms up to get you height. I'm not a fan of the under body punch, get those legs out in front of you! 
Here we goooooooo!
Okay, feet are pushing and the rest of the body is preparing to toss itself up and turn. Swing those arms, push!
A note about body position: Do not jump into the move with your back straight, and do not jump into the move with your chest parallel to the ground. Forget about pure horizontal or vertical body positions, the double leg is more of a tilt. If you enter the move with getting it horizontal in mind from the start - you will likely initiate the jump too soon and low, FUGLY DOUBLELEG! Just get up and turn over with a twist. With both legs coming through your body will adjust just fine. 
Jerk your chest up and to the sky. Things will stall for a moment as your legs catch back up. This is normal. If you consciously try to get your legs over from the start, you will compromise your jump. Think about it. If you jump as HARD as you possibly can, your legs will become straight and catch back up. Jump as hard as you can, stall them, the upper body tilt will make them rip through if you jumped and turned your chest up just right.
The body is only slightly leaned back at this point, but the rear is way up because the legs are flinging through.
The legs are really on their way now. When they start coming through, tighten up your body with some rigid tension. This puts your body into one piece so you don't fall apart in mid air.
Tighten up as said and let those legs drop over.
That's pretty much it. If you've made it this far all you have to do is let your legs follow through and complete their motion. Get them underneath you and try to stand back up BEFORE landing: That way the move looks better.
Lalala
See, I'm almost standing straight up before my feet even touch. Just think about this when the legs are dropping over and you'll be more likely to accomplish it. Just think *STAND UP*
*LAND*
Cut.I keep turning it into a backflip move?! How do I stay aligned?This can be a whole lot of different problems. Try doing your 360 crescent from the same takeoff as your doubleleg. Jump and keep it in one spot. Then try redoing your double leg similar to this and see if it helps.
It started out like this - I was watching a lot of Yellwboy's clips when I decided I wanted the double leg. I printed out his tutorial, and worked myself into it in steps. I started doing a bent knee double leg. It worked great! I followed all the instructions except I kept my knees bent. It worked me up and I got a little confidence. Finally I started working with my legs straight just like a double leg. It wasn't hard, it was kind of cool. I simply payed attention to my technique a lot, and took it in small steps. Bent knee, then onto straightening out my legs more and more until I had it. So go buy your double leg today-- erhh.. I mean learn.