A well polished submission with a simple goal, would fall under the hyper-casual label. Addition of audio is very nice and adds improves user experience. Being able to download and play quickly is a big plus.
The difficulty curve is a bit steep, after 6 clicks it can become hard for the average player to keep up and largely becomes very difficult to continue to play. The lack of an end or win condition means that you just play until you are bored which isn't the best way to maintain longevity. Finally, is this a Single Control game? Consider the amount on individual actions you must do to play.
Some more focus on the user experience would improve the whole thing, but the submission is more that sufficient for what was required outside of that one key oversight. Good work.