Card Trivia:Psychic Nightmare
- Excluding "Gusto" monsters, this card is one of the few existing Psychic-Type monsters which do not require you to pay Life Points to activate its effects.
- This card's effect is related to its Type, as you have to guess what card is in your opponent's hand. Psychic is a term used for people who have mind powers.
- This monster's appearance resembles that of a manticore.
- The Spanish print of this card has an error in its lore, as it says "...y adivinar que tipo..." instead of "...y adivinar qué tipo..."
