Click on the pumpkins to move them forward or backward if Move Backward is toggled on. When Sideways movement is on, click on the pumpkins and then the circle in the location you want to pumpkin to move to. If a pumpkin is in the same row as a ghost or is in a shadow it will become a ghost itself. If sideways movement is enabled, a ghost will have to catch and be in the same square as a pumpkin to convert it.
Sideways Movement is recommended. Don't check the other boxes; they will break things because I haven't coded them yet.