#646: Gruesome Goo
#648: Machine Attacker
"Hyosube" can be purchased in the shop.
- When the player wins a Duel, up to 50 cards are added to the shop. Each has an intended probability of 54/30,000 being this card. But due to a bias in the random number generation, it is actually a probability of 108/65,536.
- When the player enters this card's password (02118022), it appears in the shop.