Here is the full list of all 25 Shoppy Mart: Steam Edition achievements.
Unlocked Rosanne
Scan 1000 Items
Unlocked EDM Producer
Completed 100 Orders Successfully
Unlocked Crazy Hobo
Scan 500 Items
Unlocked Stoner
Completed 10 Orders Successfully
Scan 100 Items
Scan 10 Items
RIP Headphone users
Completed 500 Orders Successfully
Reached Hell
Unlocked Albert
Unlocked Buttface
Unlocked Rapper
Unlocked Larry
Unlocked Writer
Unlocked Jimmy
Completed Shoppy Mart: Steam Edition
Unlocked Veteran
Unlocked I'm With Stupid
Unlocked Nova
Unlocked ???
You've reached level 10 and unlocked the new register!