Complete each achievement to get the allotted gamerscore.
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Valedictorian (40) -- Prove your mettle at all of the Park City challenges.

Baron Von Connors (20) -- Earn respect from the riders at Park City.

Grouchbedoit (20) -- Earn respect from the riders in Europe.

Terrani (40) -- Prove your mettle at all of the European challenges.

Itto-Ryu (40) -- Prove your mettle at all of the Japan challenges.

Musashi (20) -- Earn respect from the riders in Japan.

All Aska (40) -- Prove your mettle at all of the Alaska challenges.

Bizzy Bear (20) -- Earn the respect of all the wildlife in Alaska.

Frequent Flyer (40) -- For this one you will have to prove yourself at every challenge and competition.

Ultimate Ultimate (40) -- How do you become the ultimate of the Ultimate Competitions?

OMG! (40) -- You can never have enough respect!

Slammy McSlammerton (20) -- There is this special event called the Triple Slam. I want you to win it!

Y.T.M.N.D. (40) -- If you want to be the man (or woman), you've got to beat the man.

Supa Bounce (20) -- If you keep impressing Shaun, he'll teach you how to go really big.

Supa Flash (20) -- This is achieved by completing another of Shaun's tasks. Don't worry, it's worth it.

Supa Powa (20) -- Get this one by completing Shaun's first task.

Dr. Air (15) -- Earn your Ph.D in air tricking.

Dr. Butter (15) -- Snag your snowploma by scoring huge while grounded.

Dr. Jib (15) -- You're going to need a pretty big rail for this one.

High Stakes (10) -- Bet big and win!

The Gambler (10) -- You're going to need to put up so dough, and come out victorious.

Generation 2.0 (10) -- Did you know that you can share your edited videos online? Well now you do!

Mardi Gras (25) -- If you want this one, you'll have to get competive with your friends all over Park City.

Octoberfest (25) -- Doing challenges with your friends online is the cool thing to do in Europe.

Tanaba (25) -- Up for a lot of friendly competition in Japan?

Ice Worm (25) -- You'll have to try out all the challenges in Alaska online. Come on, it'll be fun!

New Kid on the Block (10) -- Show you're more than just talk in online competition.

Mecha Shredzilla (40) -- You can never have enough respect from the internet.

Dizzy (15) -- Try to make yourself puke while airborne.

Scenester (10) -- Not everyone can...