Here is the full list of all 25 GB Rober achievements.
Finish the Game in under an Hour
Destroy Dr. Boss
Defeat PD Rober
Destroy Vintage Prospective
Free all of your Friends!
Destroy Retro Schwan
Destroy Cadence Exaltation
Destroy Stave Eminence
Earn your boss 100 Coins total.
Play the game with one of the provided assist options
Earn 15 Coins for yourself within a single work shift.
Earn your boss 1000 Coins total.
Earn your boss 1 Million Coins total.
Finish the game without ever standing still for too long.
Finish a stage without ever standing still for too long
Finish a Stage without ever walking(!) to your right.
Finish the Game in Tourism Mode
Finish the Game without ever using Hyper Mode
Find all the hidden Trinkets in the game (I swear they will be useful in the future!)
Finish the Game in under 25 Minutes
Finish the game without ever using a special weapon
Finish the Game without ever taking damage
Finish a Stage without ever taking damage
Finish a stage with 1hp and without dying once
Finish the Game in under 35 Minutes