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