Hmm, I don't know how to play this one, I think there is a bug with the reset button always being shown. I eventually randomly spammed space and hit some kind of ball to get a score of 8.2 or something. The character also just moves upwards and runs off the top of the screen, making the whole game get stuck.
I think there is a good idea and some neat art here. You need to fix the bugs before people can enjoy it though. I'm on Microsoft Edge browser if that helps narrow anything down. Good luck!