Arcade Trackball w/ vintage or new Atari/Happ style equipment in MAME in Emulation Posted August 10, 2021 2600/800 Trackball had two modes Joystick and Trackball. If the game was coded to use trackball movement then it would have variable speed, otherwise it worked like a joystick with fixed speed movement. It was just a little more intuitive to use. I think only Missile Command for 400/800 had the trackball option coded. When playing Arcade games, Trackball games work best using original input devices and not always joystick or buttons as substitute. You need to train the Hand-Eye link to the brain. I've heard that at some competition fight event that a competitor used a steering wheel as his Fight Stick; weird.