Admittedly same sentiments with Sanguine-Oni, but very excited and looking forward to further developments!
I honestly think this game would benefit from their recommendations, or also especially a sort of "top-down twin stick shooter" approach, like Enter the Gungeon; being able to move but still have directionality of attacks be independent. Both for ease of play and for carpal, I use a lot of USB controllers for gaming nowadays, and I think if rrreeeally not able to be given controller support in the future for whatever reason, allowing an additional keybind for attacking using the arrow keys on top of WASD motion controls.
As it is, especially since I rely on mouse so little and it's also clunky as an approach on my laptop, I personally haven't even gotten past the tutorial area. Though, I'm honestly also pretty bad at gaming and have some disability setback. But, was really excited to play and a little disappointed-- but I know further controlling options and input can take time to implement, and this is only a demo. I'd love to play when more control compatibility is implemented! This immediately seem so charming and lovely!