It feels a bit tricky, and I'm not sure if I'm missing some controls, but I get that you need to run to fill up a bar to pass through walls. The issue is when you're trapped and can't run to activate the ability to get through the wall. Overall, it's an interesting concept, like a maze-puzzle game where you have to think fast. It would be great to skip the intro after it's played once, so the player can retry the level as quickly as possible