That's great. The arcade cabinet at Blast Galaxy will have two joysticks and four buttons for each player(total of 8) + 2 buttons(player 1 and 2 join buttons). Plenty of options. I like the clean design of your game!
Sounds good and enough control buttons, I just need to adopt UI for gamepad controls. Kind of busy for next couple of months but still would be happy to give a try later.