fullscreen in this game is normally acomplished with F5 for a proper fullscreen, or alt+enter for an non-scaled fullscreen (game would remain same size but would black out the background

to accomplish proper fullscreen you have to use f5 first (getting an extremely glitched out window that doesnt display the game) and then alt enter. and if you exit fullscreen you get graffical glitches, and about a 50% shot at the game crashing, fullscreening this way in the first place may also make the game crash although it seems less frequent than when you unfullscreen

there is a community controller mapping but i had to tweak it for it to work, it seems like whomever made it had custom controls set up for their a and b buttons and didnt realize it so it maps them to different buttons than the default. easily fixed but very confusing if you see that theres a controller layout and suddenly you find you can semi control the game but not quite i thought something was broken for several minutes hehe