The Riddler Series, has a total of 38 cards in the set. The cards feature a color photographic image with a white border, red corners and a black border. The back of the card features a white bat with the card number, a caption above the short storyline, and "The Riddler's Riddle" which has the answer scrambled below. Aligning the wax "Secret Decoder" over the two X's will reveal the secret answer to the riddle. This set is based on the 1966 Batman Movie.