Here is the full list of all 30 Color Jumper achievements.
Beat The Crusher
Beat The Pummeler
Beat The Sniper
Beat The Chameleon
Beat a level that you've died on at least 20 times
500 deaths
Collect 10 gold medals for time
Collect 10 gold medals for rotations
Collect 100 gold medals
Collect all gold medals
Collect a collectible
Collect all collectibles
Complete a speedrun
Beat your own speedrun time
Complete a speedrun in under 35 minutes
Wheeee!
Die at the earliest possible opportunity
Complete a level without touching the ground
Well that was unexpected
These rides ain't free, you know
Defeat enemies using all four colors without touching the ground
I guess you didn't need that one
Good job
Complete all bonus levels
Find a platinum medal
Collect all platinum medals
Collect all gold and platinum medals
Complete everything there is to complete. Congratulations!
Complete a speedrun by rotating less than 180,000 degrees.
Rotate over 5,000 times