Why can't he have left hand on arrow keys and right hand on the mouse? I can do it, so Donald should be able to as well. Or... if he's left-handed, he could have his right hand on the arrow keys and his left hand on the mouse. This is something used by others as well, since the arrow keys are easier than WASD for those that sue the mouse with the left hand, although there are those that use IJKL keys instead, so they have access to more buttons, much like when using WASD. Just saying, cause I know people that use the mouse with the left hand and IJKL with the right hand for movement.