As you say, it isn't balanced. I did use the cheat button eventually and was flying around like a super-human. It wasn't clear what the ultimate goal was though? I ran around like crazy and shot a lot of ghosts, sometimes they were blue. Sometimes they spawn on top of you and sometimes I felt like I was shooting myself.
A couple of bugs, after you max out a skill you can still press the button and spend points and I don't think my health increased on the UI after upgrading until I took damage.
IMO you were a bit stingy with points early on or maybe I was just unlucky, for the first few deaths I was getting 1 coin (plus the free one) per death before I was overwhelmed with ghosts and I couldn't always get to that point because of all the ghosts on top of me
Viewing post in Blake the Ghosthunter jam comments
The goal was the Boss :P After 10 waves the boss spawns. This bug happens if you click to fast :P I got that too. And the ghosts have different abilities: white melee, blue melee but stronger, yellow ranged, green summoner who spawns blue ghosts. I would say you got unlucky, after two three deaths you should have about 12-20 points and in later waves you get crystals which are more points worth.
Thank you for playing :D