Thank you for your feedback. :)
I somehow manage to allways forget about diagonal movement in my games and don't even notice it. Dangit.
The regular enemies are indeed just different sprites without different behaviour, that is a very good point for improvement. But there is a bit more to it:
The monsters get additional attacks (Like multishots or homing shots) after a certain amount of days has passed (I think it was 6).
Also after i believe 4 days missions can have "special" enemies. Those should be indicated by the candles in the "menu" (Black smoking candles mean this mission has special enemies - But it doesn't seem to allways work reliably) and by the "boss music" playing on level start.
Those guys are basically minibosses who either hunt you down or wait for you at the "key" and "exit" locations. They have their own unique sprites and behaviours.
Aside from what you mentioned there is also still some jank (Like the inventory...) and a nasty issue with the final dungeon that i want to fix for good.
Thanks again for testing the game!