Very cool but lack of clear lines and savepoint distance make it very annoying to learn by failure.
To make a save point, you have to kill guards (people that make light), it also turns their light off and make it easier to pass :)
Unfortunately in the video you tried to bypass the guard (at 2:40) which we didn't know was possible.
With that, it should be better, we invite you to try again :)
Thank you for playing !