Thank you, I'm glad you appreciate the genre-mash!
I do strongly urge a gamepad for play-- I set up keyboard controls this way as most of my comrades prefer WASD for movement, and I've experienced too many issues in the past with keyboards not being able to take more than around three "letter" inputs at a time, while other "system" keys don't count towards this limit. The arrow keys seemed a decent stand-in for J, K, (etc. etc.) and upon testing for HTML export, some keys would not register at all in-browser, so some rearranging was done to ensure all inputs would be read and still feel relatively comfortable with left-hand controlling movement.
I truly apologize the keyboard layout wasn't to your liking, I am aware it's rather unorthodox.