A visually appealing submission that definitely focuses on the user experience through a decent art style and audio. A nice difficulty progression that I think has a foundation that can be built upon to make something worthy of putting on a marketplace.
Consider how you are exporting your game and presenting it to an audience, is they way you have done it truly the most efficient? Secondly, using two fingers to double click is a bit too strong, especially if you use the tactic early on. You might want to think about how to balance and address such tactics, if at all.
Overall, I think this is a well polished and solid submission. With some more work on the gameplay itself and perhaps the character animations etc., this would be something that could be put on a mobile marketplace perhaps. Good work!