I find games which you only control with mouse movements and no buttons interesting, because they usually have you controlling them in really unique ways which are unintuitive but still very possible to master. I definitely think I could've become good at controlling this if I'd played it for long enough, and that feeling of mastery could be really satisfying. I think if there was more to this game to actually motivate you to do that, then it could be good. If you weren't restricted by the time limit then you could've made levels for it instead of making it more arcade-style, which might've been better at getting players to master the controls. Because as it is now, a player would just go "I'm bad at this, this is the best score I'm gonna get, so I give up".