Here is the full list of all 51 JumpJet Rex achievements.
Beat Ragequit Rex without losing any lives.
Complete the RageQuit Rex mode
Beat Adventure mode on normal, getting every star and hidden package, under 3 hours
Complete the SpeedRun mode and post a time to the leaderboard
Beat Speedrun Mode in under 90 minutes.
Buy 30 different skin colors for Rex
Spend 1,000,000 gold in the shop
Master all levels
Collect every coin in every level
Collect all the hidden items
Get 3 stars on all 4 bosses
Get 3 stars on 30 levels
Complete adventure mode in co-op
Beat a level in Co-op mode
Buy 30 different jet stream colors for Rex
Buy 20 pairs of jumpboots for Rex
Cover a level in ash
Have a 4x coin combo multiplier lasting over 30 seconds
Kill the Big Globowski in under 30 seconds
Destroy 100 fireseeds in Jungle Jump
Use your projectile to trigger 75% of the switches in Power Core
Destroy 25 snowballs in Snowblind without dying
Beat P1ng in less than 10 seconds
Pay the ultimate price.
Complete adventure mode on normal.
Live to fly another day.
Complete adventure mode on easy
Defeat the fourth boss
Buy 20 different heads for Rex
Die 500 times
Defeat the third boss
Find Seedmours weak spot!
Beat the target time for a level without using Jump
Beat the target time for a level without using Dash, Drop or Rocket
Use death to your advantage in Cold Front
Spend 100,000 gold in the shop
Get a 5x bounce combo on the first boss
Defeat the second boss
Use the shortcut for a photo finish in Scrollway
Destroy 100 robots
Defeat the Yeti using only snow chunks
Retry a level 30 times
Defeat the first boss
Stun the patroller in p1ng 3 times in one run
With a 4x combo collect a ruby
Master one level
Complete Boot Camp
Get a 100pt combo on Rex's target practice machine in the Dinonaut Base.
Score 3 points in Holoball in the Rexercise Room
Collect every coin in a level
Play the game instead of letting it go extinct in your backlog