I couldn’t give the little guy souls :(
I couldn’t go back through the portal from the tower defense portion to the base portion so I had to die to go back.
Also, do the enemies get harder? With just a bunch of minion towers, I was able to get to a point where I’d just idle and collect souls for a seemingly indefinite period of time.
Pretty good polish though. I did notice that there would occasionally be a vertical gap in the clouds