Just like regular Bingo but with a Halloween twist!
Cut orange posterboard into enough squares for each child to have a bingo card. Instead of BINGO write GHOST at the top then fill in the numbered squares using the same number scheme that is used for regular Bingo. See the rules for Bingo here. You can buy an inexpensive Bingo game to use as a guide and also use the markers from it. You can also make extra markers with black posterboard or use candy corn.