I'm totally cool with fixing any joystick support. In fact, if anyone has created a config with GUI in Game Maker, I'd be happy to implement it. I struggled quite a bit to get ANY joystick working.
As far as other stuff goes, I wanted this project to have a finish time. I didnt want it to become MKFusion or any other fan game that never gets finished because someone always has something to add. So as far as the style and features of the game, it is what it is. Anyone is free to make their own that is 'better' than mine.