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