These are the quick and easy house rules for converting the Ghostbusters rules for use with binary randomizers such as coins, binary dice, or counting the even numbers of ordinary dice.
The Ghost Die is rolled in addition to the binary randomizers (instead of replacing a die), and the only face that is read is the Ghost. It has no numerical value of its own, but it helps ghosts and hinders Ghostbusters in the usual way. Any non-Ghost result on the Ghost Die is ignored.
Difficulty is divided by 5. A difficulty of 20 becomes 4, 15 becomes 3, 10 becomes 2, and 5 becomes 1. If the difficulty is not divisible by 5, round it to the nearest number that is.
And, I think that covers it. I am probably forgetting something (being distracted by supernatural phenomena and other concerns), so please leave a comment if you think of anything I might have missed.
