The cigarette tips are all identical. If you follow the rubber band around the lighter on most cans it fades into nothing.

The cans are most likely real, which helps the illusion.

Clear times vary based on the complexity of the stage. Assuming you know the solution, placing everything and running the simulation would average about 15 seconds for a small level.

You can repeat a level multiple times if the setup fails, most levels in the campaign will have extra pieces just in case the “optimal” solution isnt obvious.

The game features a level editor so you can build your own puzzles, which can be as big, small, or challenging, as you’d like.