Thank you for playing and I like your feedback so I hope I can answer a few of your questions.
The directional inputs feel inconsistent because I haven't figured out how to hold the direction in the input buffer. Right now it just stays in the buffer for 1 second and then goes away until it is pressed again.
The sounds not playing might either be the webgl ver glitching out. If its the desktop then sounds will cut out when played again because that specific sound is just playing again.
Controller toggling is my solution to deal with changing between the different controllers until I figure out a way to automatically check for it.
I hope to find some way to deal with UI jitter, flesh out the other forms moves, and some of the other things you pointed out so thanks again for playing.