This is a fantastic read, brings back many memorys of my youth. One thing I was thinking about was the undisclosed multiface backup hack that was mentioned. I b

This is a fantastic read, brings back many memorys of my youth. One thing I was thinking about was the undisclosed multiface backup hack that was mentioned. I believe this could have been done using the Z80 shadow registers, which was a copy of all the Z80 registers in a seperate bank and had to be switched to in by code. If these were used instead via in game switching the multiface 1 would not be able to switch to the shadow registers, it would just copy the main registers, so storing a key in the shawdow register would defeat the multiface 1. ...and thanks again to the op for this ebook.