Hi, I would also love an android build. Speaking for myself, I would probably play on my phone as the only tablet I own is a crappy Fire HD 10 from 2017, while my phone is much higher end. In my limited experience, most people use phones over tablets, as pretty much everyone owns a smartphone but not everyone is willing to pay an extra 200-600 dollars for a tablet that does the same things.

In terms of controls, you could try doing a modified "controller-style" setup. Basically, have a "virtual joystick" type or D-pad of arrows thing on the left side for movement, and several buttons on the right side for kicking, shooting, etc. It might actually not require much in the way of reworking, since you can't move and aim at the same time, which means that at any given point you're only making like two or three simultaneous inputs, max. You could tie "sliding" into the movement, using a diagonal or down+left/right input to detect when to slide, to further reduce the amount of buttons needed.

As for performance, if the game doesn't lag my 12 year old FX-8320 CPU and GTX 1050 ti, it'll probably run okay on any flagship phone manufactured in the last three years, and a fair amount of midrange/budget phones as well. RAM isn't much of an issue anymore, most phones start at 6 gigs these days and top out at 12-16. CPU/GPU performance might be more of an issue, but I'm not sure.

Sorry, I have a lot of experience with playtesting/giving UX and UI feedback on android ports of these games so I got carried away with ideas! I can't speak to how difficult it'd be to implement on the coding/dev side, but it'd be cool to have.