Here is the full list of all 33 Shift Shaft achievements.
You completed the tutorial!
You completed Level 1!
You found the secret exit of Level 1!
Congrats, you found all coins in Level 1!
You completed Level 2!
You found the secret exit of Level 2!
Congrats, you found all coins in Level 2!
You completed Level 3!
You found the secret exit of Level 3!
Congrats, you found all coins in Level 3!
You completed Level 4!
You found the secret exit of Level 4!
Congrats, you found all coins in Level 4!
You completed Level 5!
You found the secret exit of Level 5!
Congrats, you found all coins in Level 5!
You completed Level 6!
Congrats, you found all coins in Level 6!
You completed all normal Levels!
You found every single coin in the game!
You completed the Secret Level 1!
You completed the Secret Level 2!
You completed the Secret Level 3!
You completed the Secret Level 4!
You completed the Secret Level 5!
You completed all secret Levels!
You scored 100 in Arcade mode!
You scored 200 in Arcade mode!
You scored 500 in Arcade mode!
You scored 1000 in Arcade mode!
You scored 2000 in Arcade mode!
You scored 10000 in Arcade mode!