File:Atari-5200-Trak-Ball-Controller.jpg - Wikipedia
Atari Trak-Ball Controller CX80
Trak-Ball | Atari Wiki | Fandom
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Atari Trak-Ball Controller | Video Game Hardware | VideoGameGeek
Wow! Centipede and Missile Command are AMAZING with a CX22 trackball! Just got it on eBay. : r/Atari2600
My Trak-Ball arrived in the mail yesterday. Testing it out with Missile Command hacked for analog trackball input on my Harmony cartridge. This is so much better than using a joystick! :