It would be amazing if it could be possible on the setting "Mouse+Keyboard" (on pc) to use both mouse for all tasks AND keyboard.
--> Concretely: It would be super if you could use your mouse to walk AND additionally the keys for killing/reporting/etc.
You can clearly see that this game was originally a mobile game. In my point of view the game is easier to handle on smartphone than on pc. So it's hardly worth buying the pc version, the only pro it has is the bigger screen.