Here is the full list of all 26 JETBOY achievements.
Holiday Started
Survive the SnakeStaion
Rode a Chicken on Sweet Home Alpha Venturi
Heading Home!
Escape from R'lyeh
Bad bees bossed
Cube Cuddler
Flies Undone
Blob, blob, blob
Roids Rodgered
Became the King
Flew the Alien Ship
Flew the board.!!!
Rode the Giant Worm
Tenticle Toucher
Sheep Defeated
Worm riding sheep
ok this is getting weird
Letcherous Lasers
Skull Stroker
Dome Defeator
Spacer Acer
Palace Poker
Where the sun doesn't shine
Revenge Reign
Defeated