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