Keyboard and Joystick can't operate certain button types

Keyboard and joystick can't move sliders.

Joystick can't move out of listboxes and can't move listboxes. (Selecting maps, player model etc)

Keyboard and joystick can't open comboboxes.

Joystick has no way to editing editable fields like numbers and text.  This would need an elaborate onscreen keyboard popup menu.
