OMG here I am thinking all these games I tried recently lacked an exit feature and I forgot to put one. ( ._.) I feel so ashamed...
I plan on updating the game later, and a mobile build is on it's way! I'm not sure about the difficulty levels, since this game is supposed to be a plainly frustrating challenge, but, who knows? I'll give some thought to your suggestion.
I'm really grateful for your advice. //( =^ｪ^꞊) Thank you very much, and have a nice day!
Oh, by the way, do you use Discord? There's an AWESOME server for game developers called GDN. You should come take a look here. \( =ºｪº꞊)/ I think you'll have a blast!