I got to round 5 with a score of 255. My strategy was in each loop, I would just going clockwise around the room.
I think that the idea of this game is very interesting and from the moment i read the instructions I was intruiged on how it would play out.
I am not super fond of the gameplay though. It feels really punishing that my ghost can run into my normal body and kill me, I fell as only when my main body collides with them should I die (but I feel like that may visually be hard to convey and such). I also think that that there should be some other element here to want to work towards. Maybe not a whole bossfight but different levels with unique room shapes or modifiers. Also one final nitpick is that I don't love the pixelation screen effect. I think that the game would look better without it (normal like the thumbnail, but thats just my opinion).
Still though, this was very creative and I could see potential for something really interesting. The main thing I would want added is like a way to "win" to have something to work towards (upgrades/progression). Also I think adding some more to the visuals would do wonders, like some dynamic lighting, fog, particles, etc.
Nonetheless, Great Job!