The art scales fine from 480p through 1080p, there is literally no reason it would suddenly not scale right through 4k. And I'm pretty sure you can automate resolution detection to future-proof the game. As far as controls go, even if you can't make them rebindable (which I really doubt) at least change the defaults to the controls suggested. I'm not kidding when I say WASD-IJKL controls are the least intuitive, unusable controls possible. It seriously doesn't work. Arrow keys to move, X jumps, Z is main attack, subweapon on either Up+Attack like the original games, or C, and sex on C or V.