Hi, as a member of team WellCat I want to thank You for the comments and would like to reply to some of them :))
First of all, so far it is just a PROTOTYPE. Our main goal was to make a functional prototype with working game mechanics, that's the reason why game is small. I don't know if you used headphones or speakers while playing, but beat is NOT just a purple rectangle. It's just a visual for the beat, the beat itself can be heard in the game. In the next development, the rectangle will look differently. AI was used because none of us are graphic designers and we didn't want to make a thumbnail in MS Paint.
So as I said, our goal was to make a functional prototype with working mechanics, and we succeeded. Environment looks like that because of the lack of graphic designers and the other things, but don't worry, we will work on all of it and hope that our next update will change your opinion :))
With regards,
Team WellCat