I'm just about making my second controlpanel for my custom-build Centipede-cab, and now wonder what kind of artwork I should get for the third and for a while last panel?

So far my
1st panel (alternate play / 1 joystick) features Donkey Kong
2nd panel (trackball w. three buttons) features Centipede, of course

3rd panel shall feature two joysticks and three or four buttons, though I only remember Vanguard for the last one. Maybe I'll put a spinner on it, too, but I'm not that sure if it wouldn't look odd an such a panel. I've original spinners lying around, so that isn't an issue.
I want to keep the classic-look, but still allow some changes for me to make. Any idea's of an inspiring original with nice artwork and two joysticks?
So far I could only think of Joust (might be an option) and Robotron, but there must be much more out there. Especially Atari-games would be nice, but somehow I don't remember much of them with two joysticks in the 80's area!
Let me know of any ideas!
