Here is the full list of all 28 Moving Out 2 achievements.
You found the hidden thing in Packmore and the only reason the map is so big :)
Complete Future Dimension
Complete a Score Attack level
Smash 256 statues total
Reach F.A.R.T level 6
Pass your first day at Smooth Moves
Reach F.A.R.T level 3
Break 95 windows
Complete a Moving In level
Complete an arcade level
Find an arcade cart
Make 25 shots on any of the basketball hoops in the game
Find a style crate
Score a goal in Packmore
Find a missing employee
Completed all optional objectives on a level
Reach F.A.R.T level 1
Complete Fantasy Dimension
Complete Candy Dimension
Find all the Tech Gnomes
Complete all the levels
Achieve max F.A.R.T rating
Find all arcade carts
Find all the crates
Find all style crates
Complete 5 arcade levels
Smash 404 items while driving the truck
Do you have the patience?