I like the idea of this game, you get more powerful the less defenses you have, and I think there is a solid idea happening here. However, I think that the way that the game is currently means that there's not a lot you can do until you've lost most of your followers. I think either a more gradual difficulty ramp may work, or maybe smaller hitboxes on your followers may work, as it felt like I was also just losing followers to stray attacks from enemies, because you essentially have a massive trail of hitboxes following you in a bullet hell.
There was no audio volume options and I was having to turn my audio down extremely low to even hear myself unfortunately. Not to say it was a bad track that was composed for it, it's just that it was actually at nearly painful levels. Also for some reason the first time I opened the game it didn't let my select the tutorial and shunted me into a proper level.