Nice idea, a bit of a poor execution. Not sure if there was supposed to be any sound, but I did not hear any. I may not be understanding the game... I tried various techniques of looking back to make the chaser back off, maybe once every 30 looks I could it "retreating" to its previous pose, other than that I did not quite understand what was supposed to happen, never managed to reach the end, did not understand what the spacebar does, it never got below 9 for me.
At first it looked really intriguing (I got FNAF4 hallway vibes), but then it got quickly boring.
Thanks anyway, I understand its hard to do much in 4 days as a solo dev.