However, if you want color graphics, ROM slots, and a light pen, MAME is a pretty good choice. As you can see, you get a view of the 9845C monitor replete with soft keys and, if you enable it ...

With all the bits in place, the hacking tally is a new MAME emulator, an IDA plugin, a never-before ROM dump, and an emulator for an ARM chip that doesn’t exist, running Flappy Bird.