Hi, thanks a ton for playing!
When doing alchemical mixes, I could not always decrease one component by using right-click
You might be trying to remove a chemical that was used in a reaction, i.e. used to create a chemical that you can't select normally. If a chemical isn't explicitly listed in the sidebar (e.g. x1 water) then it cannot be removed directly, you have to clear the mixture.
A couple of times, I got trapped in rooms with no apparent enemies and red laser gates blocking the exists, basically ending runs and forcing me to commit suicide. I could hear exploding enemy ticking, but I could not figure out where the enemy was.
I've had that happen a few times, usually there's one remaining enemy that's trapped on a few props. I'll look over the enemy handling code regardless. Also, I'm planning on adding a visual indicator that points to the last two or three enemies in a room to avoid this kind of situation.
Would it be a bad change to make exploding enemies immune to physics? Or make them "heavier" against outside forces, or something
No, that's a fair suggestion. I'll make them heavier. I've also been pinballed by the bomb guys like that, made me laugh my ass off.
I do not know how I did it, but in one run, I somehow got two instances of the player character.
Interesting bug, sounds like a cool power-up. I'll investigate it.