Opera hack

Event editing for the Opera scene is going to be a beast.

For event editing, I follow the tutorial that was mentioned. I load the rom into Zone Eater CE, and use their scripter to mock up the changes I want to make. However, Zone Eater is extremely buggy. Every time you enter a subroutine, you HAVE to enter it as jumping it to CA0000. Then, if you have a line that jumps to subroutine CB1234, and you shift its location in the script, Zone Eater will change it to CA1234. So to get around that, I build the event the way I want it in Zone Eater, then I hand-enter the hex via Cygnus.