Give Up the Ghost: SAVE EDITOR
WARNING: this is a save editor for "Give Up the Ghost: a puzzle checklist"
If you'd like to play the game itself instead of editing the save file, it's available here:
Instructions
Use arrow keys and z to check or uncheck levels in the menu. Once you have the levels checked, leave this page and open the main game's page. The progress in the game should be the same as what you've chosen in this save editor.