This was really unique, I like how you could see the ghosts through the planet even though that kinda doesn't make sense but from a gameplay perspective it works especially since the ghosts seem like they can go through the planet slightly? I agree with the others that it felt cramped, maybe needs a health system.. Honestly, pull a few more ideas from other survivors games and you have something really great here. I hope you continue working on it, this game has a really neat twist. Also the story of "teaching the ghosts peace by shooting them" is great

The world does need more games taking place on spheres. I was a big fan of https://wakaba.c3.cx/s/games/swear back in the day.

I agree with the_nacho that things felt a little cramped. It seemed too easy for enemies to spawn close with no way to escape.

I liked the planetary thing, it's a nice twist on the "survivors" genre. It did feel a little claustrophobic though, I would have preferred if the ghosts were smaller and/or there was a little more space to maneuver.

I liked it, a unique gameplay - again a game with orbit / planetary mechanics that I kinda dig! 

This is pretty cool! Very unique and interesting. I had a hard time telling what my projectiles were doings, but it was fun strategizing where I shoot them! :)