Pure

You can actually do it on Sandy Moutains (it works without oponents) with Jay Valdes. Build an ATV with 100 Tricks, and build your boost until you come across the second vertigo jump (the first one being just after the start). Once your here, start preloading while boosting, and as soon as you jump, use Air Guitar (Up + RB LB). Before the first trick ends, hold them again to make a smooth transition (hey, every millisecond counts !) and do another Air Guitar.

I was first going for two Sidewinder but Air Guitar worked at my first try !

I've never seen anyone get this achievement cleanly, and whether it's even possible I still don't know. Make sure you have an A class ATV with as close to a maxed out tricks stat (100 is the max) as you can.

Go to the Sandy Mountain level, build up special, and do Blind Faith (LB + RB + UP) as soon as you leave the giant ramp (it's one of the shorter specials). As soon as you can afterwards, perform Gyromaniac (LB + RB + BOTTOM-RIGHT). You just have to get lucky with the landing to be honest, and this is why you have to use Gyromaniac. My ATV landed half way between on it's side and a perfect landing, and I managed to not crash and I got the achievement.

You just have to get lucky and hope your rider can stay on the ATV when it lands to be honest.

You can write a 1000 guides on this but this achievement is 99.9% luck. Here's a video I made showing you how to try and get it yourself.
I'm using the Japanese driver Takeshi Yukio on Sandy Mountain. I used the trial mode so there are no annoying opponents driving into you.

I originally posted this on X360A but since it was well received I thought I'd add it here too. Sorry for the wall of text but I put this together with the level of information I would have liked when I was going for this achievement.

Rider - Takeshi Yukio
Engine - DASA Racing 449cc 4 Stroke (A Class)
Stats - 96, 87, 22, 85 & 100
Track - Sandy Mountain
Special Tricks - Blind Faith (UP) and Rockstar (LEFT) in that order
Do this in Trial Mode so you're the only person on the track. Before anyone says this has to be done in World Tour or Single Event, believe me it doesn't. I unlocked my achievement in Trial Mode. When you go over the Vertigo Jump go straight on instead of up the steep path to the left. Follow this route. The jump before the Vertigo I got a double Y button trick in. After landing I used some boost to get moving quickly, lined myself up and then put the boost back on at about a 3rd of the way round the bend that leads to the Vertigo and kept it on til I was in the air. You need shit loads of boost and a 100% preload else you can guarantee you won't land your 2nd trick. Not much more to say other than swear excessively when going for this achievement (and try to avoid breaking things in your house). It's annoying. Simple as. Let the anger out and try again.
Again, credit goes to CheshireMulisha who got this achievement before me using the same rider but different tricks. He used Sidewinder (I think - whatever the UP/LEFT special is with Takeshi anyway) followed by Blind Faith (UP). I don't know exactly what his stats were but they were similar to mine.

This is without a doubt one of the most infuriating achievements to get. The only place you can get it, I think, is Sandy Mountain, off of the large vertical jump about a quarter of the way into the lap. What I did was go to Trial Mode, and Freestyle race (the blue fire and yellow star tokens help immensely, they give you boost & specials respectively). I chose Takehsi Yukio, and my ATV had the following stats:

Max Speed: 86
Acceleration: 93
Handling: 26
Boost: 82
Tricks: 100

I will say this though, straight away, DO NOT ATTEMPT TO END WITH GYROMANIAC. It's all very well claiming that it's 99.99% luck, but trying to nail the 0.01% that you supposedly need will drive you mad.

What you want to do is take the precdeding corner as straight as possible, boost almost all the way, preload, and hold the LB+RB buttons as you approach. This way, when you move the analog stick up to jump, you will automatically go into a Blind Faith. Keep LB+RB held, and hold the analog stick to the left for a Rockstar immediately after. This way, you can easily position the ATV for a good landing, which is near impossible with the Gyromaniac others are suggesting.

I tried Blind Faith + Gyromaniac almost 50 times, and failed every single time. Blind Faith + Rockstar worked on my very first attempt. I was heading quite far over to the left on landing when I pulled it off, so if you keep it in the middle you should be able to get this without too much bother.

I got this achievement after reading one of the guides here. I used Takeshi, went to Sandy Mountain (cause it really does have the biggest jump in the game), then tried Soulblitz's tactic may times (Blind Faith, Gyromaniac) but it wasn't working. I then did Twister, then followed with Gyromaniac and it worked.

It seems when you do Twister, you don't descend as quickly as with some of the other Specials, which gave me more time to do Gyromaniac. The key is to pull off Twister AS SOON AS you preload off the jump. You have to be quick. Just before twister finishes, Hold RB+LB and the direction for the second Special (I used Gyromaniac). This should activate the second special as soon as your character is able to.

So basically, once you've unlocked Twister(which any character can use), you can try for this achievement.

IMPORTANT: The secret here is to perform the first move ASAP immediately after leaving the ramp with boost. Do not wait to get altitude to perform.

Use a bike with maximum trick (100), use Suzi Andrews as a pilot in Sandy Mountain. Make the first trick LB+RB+UP as mencioned before and then shortly thereafter hold LB+RB+LEFT until perform second trick.

Good Luck

ive tried others solutions any none of them worked for me.. but yeah... the map to use is the same as everyone else is using "Sandy Mountain" and try to attempt it on the second big jump. the rider that i used is Rosa, my ATV i used was of course a class A engine and the trick was at 97. the tricks i used was RB+LB+ DOWN and RB+LB+DOWNRIGHT. if you fell their is a shorter special move then go with what you feel but make sure you end with the Gyromaniac which gives you a better chance to land wrong but stay on your ATV.

This is the guide i made today, I hope that this guide helps.
Its important that you first use Gyromaniac and then blindfaith.
Also build up a lot of boosting, but Its always a bit of luck, because you have to land in the 'correct' way.

I read every solutions about this achievement but they're all "missing" something.
Yes they're correct on the place (Sandy Mountain), the quad (A, max style etc ), the character and the tricks (I don't really know if that's important), but even with that, almost no one gets this achievement on their first try.

Here is my solution for that:
On Sandy Mountain,

1) While boosting before the jump, you have to set your target from right to left, not straight ahead (Like if you'd like to not fall on the race, but crash yourself on the left cliff).

2) instantly launch your first trick and continue to move your quad to the left (above the cliff, not the race road)

3) Continue with the second trick and then move your quad to the right in order to not crash on the mountain and get back to the race road

4) it's done. What happened?

In Pure, when you jump, the higher you are, the faster you fall. Jumping on sandy mountain on the left side (above the mountain rocks) is a way to reduce the distance between you and the ground... and the fall will be slower than if you where correctly placed above the road. Even with this trick the timing is really strict, and that's why people are getting so mad with this one.

Here is the video I made (a loooong time ago) for both achievements (Two Times and Zero to hero). Sorry for the bad quality but maybe it could help to understand what I wrote above.


---
Okay, Why am I posting a solution for an achievement that I have since 2008?... I don't know, maybe because I just read anoter bad news about Disney Interactive which reminds me of Black Rock Studio (RIP) and then...

difficulty : 9/10
The stats I used on my setup that worked are
maz speed 100
acceleration 83
handling 23
boost 93
tricks 97


trials mode freestyle
sandy mountain


jay valdes

air guitar X2
getting the boost right is important just before you turn to straighten out over 2nd vertigo ...couple tries might be needed ..
with my 4th retry other 2 went off course I lined up perfect preload with LB/RB pulled in soon as the trick starts you can keep holding for the 2nd trick to automatically start...