Use restart 20 times
Use restart 15 times
Use undo 20 times
Use undo 15 times
Use undo 10 times
Use restart 10 times
Use restart 5 times
Use undo 5 times
Use undo for the first time
Use the portal for the first time
Complete level 20
Activate the lever for the first time
Complete level 15
Use restart for the first time
Complete level 10
Disassemble pieces 5 times
Push a box 10 times
Assemble pieces 5 times
Push a box 5 times
Activate the button 5 times
Complete level 5
Disassemble pieces for the first time
Push a box for the first time
Assemble pieces for the first time
Activate the button for the first time
Complete first level
