In a world where builders are cramming every game they can into their builds, (I'm guilty of this too

) what game would you build (not buy) a dedicated cab for?
I'm not talking about a cab that only plays 4-way games...or a cab that only plays one-button games.
I want to know what game(s) you think is so unique or so good that you would be willing to build an entire cab just to play that
ONE game.
I'll start. First games that come to my mind:
- Qbert - Needs a dedicated on-angle 4-way joystick
- Mario Bros. - No special reason other than it has a lot of replay value for a 2P game. I could play it until the cows come home.
- Joust - Same reason as Mario Bros. Plus it has awesome artwork.
- Zookeeper - TONS of good replay value and variety. Very cool artwork.
- Tutankhamun - Unique controls and just fun to play. However, hard as snot to master.
...and yes, I would consider building dedicated cabs just for the games above.