Yeah I agree it is a bit confusing as the tutorial wasn't great but I explained most blocks in the itch page basically not inverts the input, and it is connected to a timer which gives an output when it runs out and it is connected to a "lose" block which loses the level if it is powered on, so essentially when you move from the pressure plate at the start a timer start and you lose if it runs out, I will work on introducing each mechanic in a more organic way so it is less confusing. Thanks for your feedback!