Blitz2, Swdtech2, Morph2, etc...

Regarding point #4 (replacing Revert with a different command)... normally you would think that this would be a very simple change, but the developers decided to be a bit too clever, and used an XOR instruction to toggle between Morph and Revert. It's still not a very big deal, but you'd have to write new code to decide what the command should be, which is a pain.