As some of you may or may not know, Thomas Jentzsch and I have converted some 2600 games to use a Trak-Ball controller. Thomas originally converted Missile Command to use the trackball over a decade ago. More recently Thomas converted Centipede and Reactor. I joined the fun and did Millipede. The thread we posted the ROMs in wasn't really related... it all came about kind of spontaneously. That thread does contain a whole whack of routines if anyone is ever interested. It all starts on page 4 and goes for several pages.
Here in this thread are the latest ROMs, organized, for easy finding.
Note for CX80 Trak-Balls:
Atari originally made CX80 Trak-Balls to be compatible with the CX22. Later on they changed the CX80 to be compatible with the ST Mouse. If you have a CX80 Trak-Ball then you will have to try both the CX22 and CX80 (ST Mouse) ROMs to see what works with your Trak-Ball. Or try the detection ROM.
Note for CX22 Trak-Balls:
An early version of this controller only works in joystick emulation mode and cannot be used with these ROMs unless modified. Check for the presence of the "joystick/trakball" switch on the bottom left side to ensure that you have the later compatible version and set it in "trakball" mode.
Wico Command Controller Trackballs:
These trackballs don't work with these ROMs as is. However, the Wico Trackball can be converted to use the CX80 (ST Mouse) ROMs. See here for details.
Link: Trak-Ball/Amiga Mouse detection (TJ)
Roms: Trak-Ball Detect v1.0.zip 2.46KB 181 downloads
Link: Missile Command TB (TJ)
Roms: Missile_Command_TB_(TJ).zip 20.5KB 271 downloads
Roms: Missile_Command_CX_22_v1.3_(TJ).zip 6.93KB 177 downloads
Link: Centipede TB (TJ)
Roms: Centipede_TB_(TJ)_v1.4.zip 111.02KB 209 downloads
Link: Reactor TB (TJ)
Roms: Reactor_TB_(TJ)_v1.3.zip 78.91KB 187 downloads
Link: Millipede TB (Omega)
Link: Millipede Amiga and ST Mouse Info (Omega)
Roms: Millipede(Trakball)v6.zip 140.59KB 129 downloads
Link: Challenge Of Nexar, The (TJ)
Roms: Challenge_of_Nexar_TB_(TJ)_NTSC_V1.1.zip 8.56KB 180 downloads
Roms: Challenge_of_Nexar_TB_(TJ)_PAL_V1.1.zip 17.12KB 148 downloads
Roms: Challenge_of_Nexar_CX22_(TJ)_v1.2.zip 8.53KB 182 downloads
Link: SW_Arcade (Omega)
Roms: SW_Arcade(Trackball)V4.zip 55.94KB 160 downloads
Roms: SW_Arcade(Trackball)V4__Inverted_Y_Axis.zip 56.11KB 153 downloads
Roms: SpaceMasterX7_(Trackball).zip 52.97KB 188 downloads
Link: Missile Control (TJ)
Roms: Missile_Control_TB_(TJ)_NTSC_V1.15.zip 9.71KB 35 downloads
Roms: Missile_Control_TB_(TJ)_PAL_V1.15.zip 19.42KB 20 downloads
Link: Marble Craze (TJ)
NEW: Marble_Craze_TB_(TJ)_NTSC_V1.0.zip 45.24KB 24 downloads
NEW: Marble_Craze_TB_(TJ)_PAL_V1.0.zip 90.62KB 13 downloads
Edited by Thomas Jentzsch, Wed Feb 22, 2017 3:44 AM.
Added Marble Craze 1.0 ROMs