We like to hear that you had fun playing our game. You are correct, there are still some collision detection bugs that unintentionally damage you. I noticed as well that some weapon/enemy collisions damage you even though they shouldn't. Until we are able to upload fixes again I suggest to play only using spikeballs. They seem the most robust. Or try to go full ranged damage with guns only. Going for an endless run/ huge build is currently only possible with spikeballs.