[Coco] Mary demo updated

[Roger Taylor]

I'm pleased with tonights updates to the game!  The sound effects 
were improved and Bob's Australian CoCo 3 now starts the game in 50hz 
PAL mode.  You can manually select 50/60hz at the main menu as well 
if your CoCo 3 ROM if for some reason the mode isn't detected automatically.

You can even run the demo right from the website if you have the VCC 
CoCo 3 emulator installed right.

Check the downloads page for a .dsk or .bin copy.

Yeeeha!!  Mary's a star.