Thanks for your comment and for playing my game! I know it's quite buggy, but I haven't been able to make it crash... I'm curious what would cause that.
I agree in hindsight that dots would've been nicer (maybe even easier) to implement than a number. I've seen some games similar to this one that also used different colors per number as another visual queue, which I think was a nice touch.
Some kind of power-up or power-down system is a nice idea as well! I want to work on it a little more when the jam is done, so perhaps I can add some of those in there :)