Yu-Gi-Oh Forbidden Memories, known in Japan as Yu-Gi-Oh! True Duel Monsters: Sealed Memories is a video game based on the Yu-Gi-Oh! manga and anime series.
The game takes place in Ancient Egypt. The players play the Yu-Gi-Oh! Trading Card Game alongside characters that appear in the series.
Gameplay[]
This game plays differently to the TCG, because it uses prototype rules that were originally being considered when the card game was first being adapted from the manga. Many rules such as Tribute Summoning, Effect Monsters and the need for "Polymerization" to perform Fusion Summons are not present. As for Ritual Spell Cards, they demand specific tributes (For example, when "Zera Ritual" is activated, one must have a "King of Yamimakai", a "Ryu-Kishin Powered" and a "Wicked Dragon with the Ersatz Head" to offer them as tributes and finally summon "Zera the Mant"). Once a Ritual Monster is created, it is Normal Summoned like all other monsters in the game.
The Equip Spell Card equip conditions are also very different in this game, most of the time being based on the type,artwork and the flavour text of the monsters. For example the card "Dark Energy": whilst this card only works only on Fiend-Type Monster Cards in the TCG, in this game this card works on every Zombie-type monster, and various other specific monsters cards like "Jirai Gumo". Their primary guardian stars will also tell a lot about the monster's ability to be equipped with certain cards. For example: All monsters whose first guardian star is Mars ♂, except "Thousand Dragon" can be equipped with "Salamandra" and in most of the cases "Invigoration". Monsters with the guardian star Mercury ☿, can all be equipped with "Dark Energy", "Black Pendant" and/or "Sword of Dark Destruction", and almost never can be equipped with cards like "Book of Secret Arts" or "Legendary Sword".
The card "Invigoration" works on any FIRE Monster Card such as "Flame Swordsman and "Flame Ghost, as well as Thunder and Rock cards like "Boulder Tortoise", but also works on some other monsters like "Change Slime " and the already mentioned "Jirai Gumo "
The card "Legendary Sword" doesn't work on all Warrior-Type Monsters. It works with some Warriors, and can also be equipped to other monsters like "Bladefly, Cockroach Knight", "Tiger Axe" and "Gatekeeper", since they're Warrior-like monsters. "Sword of Dark Destruction " works on all DARK Warrior-Types, some non-DARK Warriors and in monsters like "Zombie Warrior ", "Skull Knight ", "Garoozis " and "Magician of Black Chaos".
The card "Book of Secret Arts" doesn't work on all Spellcaster-Type monsters, but does work with Fairy-Type monsters, and sometimes works with certain specific monsters such as "Psychic Kappa", "Spirit of the Books", "Sea King Dragon" and "Sengenjin".
Unlike in the TCG, after a Equip Spell card is equipped to a monster, the equip card does not stay face-up on the field. The card disappears and the monster permanently gains 500 ATK, except in the case of "Megamorph" where the monster gains 1000 ATK instead. Equip spell cards can also be combined with monster cards in the hand to apply their effects, similar to monster fusion.
There is no Extra Deck, Graveyard, nor a banished zone in this game. Any monster that would be normally be a monster placed in the Extra Deck (for example a Fusion Monster) is a Normal Monster in this game and placed in the Main Deck. If a card leaves the field, it simply disappears for the rest of the game. It is also possible to Fusion Summon other Spell/Trap cards by fusing a Spell/Trap with another Spell/Trap or a monster. For example, you can obtain an "Eternal Drought " by fusing an "Umi with "Mystical Moon or "Dark Hole", and a "Harpie's Feather Duster" by fusing any combination of two cards from copies of "Harpie Lady " and "Harpie Lady Sisters"; or by fusing "Machine Conversion Factory" or "Bear Trap" with certain cards that have feathers featured in their artwork.