Really well executed idea, nice work! I had a great time trying to first beat it and then see how fast I could get through. There were a few occasions that showed visual/physics glitches where the player could get stuck fully within a wall, and another where the tentacle appeared to be searching for a wall by flicking out at different angles. But they were very rare and didn't impact gameplay. Great work! Loved the little details like the blinking eye and lighting.