Indeed not very original
Yeah I have indeed played this addictive little game a lot of times before, so it's not very original. Good thing that you added music in it and the controls were also pretty good. You were still sliding a bit sometimes, but that made the game a little bit more of a challenge. There were also some things that I didn't liked. You could move of the screen on the right so that you appeared on the left. I don't know if you added this on purpose, but it was quite annoying sometimes. It could also use a different background, the background you had right now was a little boring. It would also be nice if you added some more stuff like powerups (to give you more speed, to make enemies slower etc.) and maybe some more types of enemies. That's probably pretty hard cause I thought pacman has only one type of enemy, but try to think of something. Overall I would say it's quite addictive and pretty funny for a while, but it ain't very original. Good luck with improving the game, if your gonna do that.