Soooo....yeah....apparently you cant make the character run on android so you have 2 options:your horny ass need to have a patience of a fucking monk,or pray the devs do something about that ¯\_(ツ)_/¯
Are the buttons not working on android? Because the speed change isn't tied to a specific keyboard press, it's tied to an internal button in the engine, which is then mapped to the keyboard, so if the emulator has those mapped it should work just fine, if the emulator doesn't map the special buttons you might be out of luck