Thank you for playing. I limited the number of ghosts so that there were max 5 at one time, thinking it would be way too hard with too many at once. Yep, I agree with the ghost immortality point as well, I did make them slightly harder to kill, but I think I forgot to make their health properly scale.
Again, agree with you about the upgrades. I specifically decided to add the 3 stat upgrades again on the second choice on the last day purely because I thought the other things weren't that useful. Should've made it so you could upgrade the actual utility items.
Yep, I'm not a graphic designer at all. With more time I would've added the rotations you suggested.
Again, thank you!