I've included the shipping cost. "Tri Formation" (Overseas title: Zillion II: The Tri Formation) is an action-shooting game released by Sega for the Sega Mark III on December 13, 1987. I purchased this item approximately 30 to 40 years ago and stored it unused in a dark place. I opened it for the purpose of taking these photos. There is some slight deterioration due to age, but I believe the condition is quite good. Please feel free to comment if you would like additional photos, to combine purchases, or to request a discount.