I think the visual style here is pretty cool! I also like the idea of using a countdown as a "resource". Generally, I found the countdown to be disconnected from the gameplay, though. When playing, if my usage got too high, I felt it wasn't worth it to complete the level because it would be easier if I just got to restart without the lasting consequences of dying or using an ability. I think abilities are what makes the game interesting, as it forces you to engage with the countdown. However, I never encountered a situation where I had to use an ability to complete a level, and every time I tried to use one I felt it wasn't helpful enough to justify the cost.
In total, I think this is a great game! I would also like to mention that just because you don't have a web build doesn't mean you can't find success, both in the final rankings and amount of ratings. Many games do well in both categories without a web build (including my own past submissions).