Changes
/* Technical */
* Uses NMI
* Doesn't appear to capture the hardware state like the Multiface does. Code in the ROM reads the PPI state, AY registers, and CRTC registers 12,13,14 and 15 and stores there values and restores them later.
* When a write happens to their RAM it appears to write through to the RAM behind??
* Menu code is at offset &3810 and is copied into RAM at &A200.
