Complete Clean Slate.

Complete The Clock Tower.

Complete Closing Time.

Complete The Delivery Round.

Complete A Place For Every Note.

Complete The Sun Field.

Finish the main game.

Put your first loose item in its correct place.

Complete The Pipe Garden.

Complete The Giants Shelf.

Complete The Long Hallway.

Complete The High Store.

Complete The House.

Complete The Last Sweep.

Complete a puzzle level without using Undo.

Complete The Observatory bonus room.

Complete Passing Places.

Complete A Place for Every Note while asking the conductor to play the reference tune no more than once across the whole level.

Complete A Little Personal Space.

Complete The Plan.

Complete The Returns Cloister.

Complete Room In The Case.

Complete The Stacks.

Complete Opposite Company.

Buy any upgrade from the Upgrades menu.

Complete The Vault Stacks.

Complete The Warehouse.

Complete The Worlds.

Complete The Full House extra room.

Complete The Whole Plan extra room.

Complete the Late Returns extra room.

Complete The Deep Vault extra room.

Complete the Long Overdue extra room.

Complete The Water Garden extra room.

Complete The Long Sweep extra room.

Complete the Big at the Bottom extra room.

Complete the Made to Fit extra room.

Complete the Lights Out extra room.

Complete the Room for Everyone extra room.

Complete the Pushed into Place extra room.

Complete the Nothing Missed extra room.

Complete the All Returned extra room.

Complete the Nothing in the Way extra room.

Complete every extra room.