Here is the full list of all 22 Righty Tighty XL achievements. It takes around 1-2 hours to unlock all of the achievements on Windows.
Unlock Green
Unlock all skins in the game
Unlock Blue
Earn 50 Points in a single round
Earn 45 Points in a single round
Unlock Orange
Unlock Purple
Unlock Mick and Rorty
Unlock Bit Blaster
Unlock Orbt
Unlock Diamo
Unlock Ding Dong
Earn 750 points across all rounds
Earn 40 Points in a single round
Earn 35 Points in a single round
Have a total of 50 near misses
Earn 30 Points in a single round
Earn 25 Points in a single round
Earn 20 Points in a single round
Earn 15 Points in a single round
Earn 10 Points in a single round
Earn 5 Points in a single round