I had to lower the gun's strength and use the longer animation to avoid spamming (which you can still do, and then that led to adding in some invulnerable attacks for the bosses and I just kept going). There's some balancing to do, but I'm glad you found it interesting. Thank you!
Also, I originally wanted only monsters/creatures, but after the first one, I decided to switch to have more interesting characters because they're just silhouettes.