MESS currently supports cartridge dumps for apfm1000. The “cartridge” (cart) device supports .bin images, and you can run them using e.g.
mess apfm1000 -cart "C:\pathtogame\gamename.bin"
If you don't specify any cart, the built-in game “Rocket Patrol” will start.
Games are controlled through the non-detachables joysticks and keypads. The 12-keys keypads are placed under the joystick and have the following layout
7 8 9 0 4 5 6 Cl 1 2 3 En Cl,En=Clear and Enter
On the back of the controller a trigger is present (labeled as “Fire”).
The APF M1000 was released in 1978. It's a Video game system cart based, comes with 2 non-detachables joysticks with a numeric keypad on each ones (look likes a mini-calculator with a joystick), has “Reset” & “Power” buttons on the unit. It could be played on a Color TV only. This system seems to have been the pack-in unit with Imagination Machine.
A second model, the APF MP1000, was released in 1978. This system is basically the same as the M1000 model and both systems does come with built-in game called “Rocket Patrol”.
Both of these systems had the ability to be expanded to the Imagination Machine & both can play each other cartridges.