I appreciate the honest and thorough feedback. I agree the double door level has a very narrow window of opportunity to pass through, I left it in to see if people would eventually make it past, it is challenging even when I play it.
The dash only occurs you click and when the player's visor turns red and still charges even when the player is still moving. I did leave alot for the player to discover the mechanics on their own from room to room, may have been better for more in game hints at the start to ensure this was communcated more clearly because I don't read instructions in video games either lol.
Thanks for playing through it, at least I know the game can be beaten. Hopefully the restart at the beginning isn't too punishing for everyone playing.