Here is the full list of all 45 Zero Gear achievements.
Do a barrel roll.
Win a goal mode game in overtime.
Win a race while airborne.
Drive 2,448 miles.
Drive 1,000 miles.
Score 10,000 accumulative points in target games.
Accumulate 15 minutes of airtime.
Drive 500 miles.
Finish 2nd 50 times.
Finish 3rd 25 times.
Finish 1st 100 times.
Get hugged 3 times in one game.
Draft off a player for 10 straight seconds.
Reset yourself 50 times.
Win in goal mode after being down by 2.
Play a game with only pirates.
Play a game with only military officers.
Play a game with only inspectors.
Play a game with only gentlemen.
Cross the finish line in first place while frozen.
Use a spring 50 times.
Get knocked 100 meters from the platform in Fallout.
Steal the arrow 5 times in one tag match.
Fall off a map 5 times in one game.
Win back to back games in goal mode without the opposing team scoring.
Do a triple flip.
Do 20 flips.
Do a double flip.
Repulse 5 players at once.
Hit 6 players with a mine.
Get iced 5 times in one game.
Punch 2 players at the same time.
Stay airborne for 6 seconds.
Lose first place in the last seconds of a race.
Overcome the player in first place and win the race in 1 second.
Boost for 30 straight seconds.
Win a race with the indie slider activated.
Do 10 barrel rolls.
Play in a game with 3 other people on your friends list.
Be a good sport.
Remain in first place for an entire race.
Win a race without using boost.
Play a game with only machines.
Win a race without using a weapon.
Do a flip.