Here is the full list of all 12 Jet Racing Extreme: The First Encounter achievements.
Reach Top50 to get it.
Reach 170 m/sec.
Reach 255 m/sec
5k points of damage.
25k points of damage
All tracks in Canyon passed.
Accumulate 5000 meters of free flight.
25k meters of free flight accumulated.
Accumulate 5000 meters of drift.
Accumulate 25k stunt points.
Engage all boosters (with uberAB) for at least 5 seconds.
All achievements