Locate the hammer in the garbage cans at Horrorland Plaza and return to Werewolf Village, then go to the wheels that control the fire. Use the hammer on the "worm" to play a "Hit the Gopher" type game.
Enter the werewolf's house and look in the bedroom. Examine the credit card in his wallet and go to the vampire village, then approach the gate where Dracula lives. Turn around to find the blood bank and enter the four numbers from the werewolf's credit card to enter.