Here is the full list of all 12 SkyDrift achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Unlock Stage 2.
Complete the campaign.
Collect 10 Badges.
Collect all Badges.
Unlock all events in the campaign.
Unlock all Planes.
Unlock all Skins.
Earn your first victory online!
Win a race with every plane.
Complete at least one match for 7 consecutive days.
Kill two players at the same time with Shockwave.
Use every powerup in the game at least once.