Couldn't get the controls to work but beat first boss without moving. The control issue may have been the vm I was using so sry if it was just me. The installation is a major downside, I'd recommend you not use this engine if the installation cannot be made simpler, atleast if you want more people to play your game. Only thing I can rate was the style and music which were both amazing.
edit: I really shouldn't skip reading the game pages lol, unfortunately I don't have a controller at hand