Move the pumpkin so it doesn't get bitten by the ghosts. The farther a ghost is away from the pumpkin, the faster it moves. Touch the green orb to shield the pumpkin for a while. Pay attention to how the ghosts are attracted to the pumpkin and develop a strategy to escape from them while the the pumpkin is shielded. (Hint: Don't move the pumpkin while it's shielded. See what the ghosts do.)