This is really solid and very polished. The sound effects were extremely well done and that timer sound had me panicking 100% of the time. The music was the only piece that didn't really seem to fit - the piece you chose has a really down and somber feeling to it, while the game itself seemed more lighthearted than that.
Overall though, it's a very nice game! It feels like it's just missing some sort of actual scoring system, and it would be good to go for a mobile game.