It's impressive you literally did a web game, it's the first time I see it. I like the concept, there's some sort of Minesweeper-like gameplay here, but I didn't expect it to be an action game, that's cool. It can be expanded easily into a full game I'd say, there's room for many cool mechanics with this concept! Maybe one downside is that once you found the strategy, right now, there's not much things preventing you from repeating it over and over again.
Overall I like it a lot, and the art is impressive!