Enemy breath cloud on cold areas
Make it so that whenever an enemy breathes on a cold area, a small cloud appears.
Wouldn't this work a bit better once a "temperature" mechanic(setting either in the text file or in the editor) is implemented? That way, the engine'll just have to look for a certain temperature level(the threshold could be edited in the game settings text file), and if it's below that threshold, it should spawn "smoke" or "cloud" particles every so often(again, this could be edited either in the animation editor or the enemy text file) in the direction of either a hitbox named "mouth" or hitboxes with the setting "mouth" ticked. This is just a suggestion on how it could work, there could be other ways to implement this.
That is pretty much 100% what I was thinking! I didn't give it much thought, but having something like this written out in detail helps.