I really love this new iteration! The HUD is a perfect add to the original mechanic you had and your level design is very clever. The only drawback I can see is that some rooms have obstacles so close to the entrance that it's very hard to pass them if you're not ready and hyper focus. But it's not such an issue actually because it gives the game a soft die-and-retry aspect in which passing a room becomes very fulfilling.
Overall this new polish makes your game very pro and with little more content (like more levels?) I could see it being a paid game. After about a dozen rounds I had to give up (because I want to try more games before the voting ends), but your game is addictive enough for me to want to come back as soon as I can and try to reach the end!