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