Here is the full list of all 22 XTHRUST achievements.
Finish the mission in under 4 seconds
Finish the mission in under 5 seconds
Complete the tutorial
Perform a 360° above the line
Reach a max speed of 45 km/h
Don't tilt more than 15°
Fly inverted in the marked area
Stay in the marked area for 10 seconds
Finish the mission in under 20 seconds
Complete the edgy landings chapter
Obtain the pirate flag side panel
Play one round of gem hunt
Unlock all thruster particles
Obtain all golden parts
Get 100 close combo XP on balloons
Finish the mission without damage
Don't tilt more than 45° in the marked area
Complete the ocean drop chapter