Estimated dev time on adding controller support?

hello. I saw the game and really want to buy it. However, I have a physical disability so I cannot use mouse and WASD together. Is it possible to play the game using only the mouse?

Has anybody managed to actually get any use out of immolate, every time I've picked it I just die during the longer levels from the self-damage...

So after killing a boss or something (not really sure where they come from), some basic looking enemies spawn that have 1000x or more HP than the bosses that spawned them. 30 minutes of just grinding them down. https://i.imgur.com/wN0iaIL.png (Those percentages there are the HP of most basic circles and you can see how large the mines have become.)...

Still dont get it. What to do for complete it?