Thanks!! We planned on adding full gamepad support and started with it, but in the end we completely forgot it and literally on the day of submission with few hours left, we were like shiiiiit :D But yeah sorry about that!
Glad you liked it thought, yeah the boss fight can be relatively fun especially with few of your powerUp choices giving it a completely different twist.
Oh weird, just tried it myself and it was working, but sorry to hear that, thankfully you sticked around to make it further though! :)