Interesting puzzler! The one issue I had from a design point of view is the lack of visual aid for keeping time. To me it felt that the game required me to keep track of how long i need to keep the "clone" standing on a switch to give myself enough time. It would help if there was a unit of measurement i could use to help me count like the character flashing every second for example. That would help me decide "I need to wait 3 flashes because that's how long it takes to walk to the door". Not everyone is good at counting accurate seconds. good luck!