《伊蘇 II：失落的伊蘇古國終章》的 Famicom（FC/NES）版本於 1990 年 5 月 25 日由Victor Musical Industries發行。這個版本是從 PC-88 原版移植而來，但由於家用主機性能與操作方式的差異，在遊戲手感與部分設計上出現相當明顯的改動，也因此形成與原版截然不同的遊玩體驗。

在劇情方面，延續《伊蘇 I》的故事發展。主角亞特魯·克里斯汀在蒐集齊六本伊蘇之書後，被傳送到漂浮於天空的伊蘇古國，並在蘭斯村與少女莉莉亞相遇，展開新的冒險。隨著旅程推進，亞特魯需要尋找六位神官的後代，逐步揭開「黑真珠」的秘密，最終深入龐大的薩爾蒙神殿，與最終魔王達姆對決，讓伊蘇古國重回大地並恢復和平。

在操作與系統設計上，為了配合主機特性進行大幅調整。最顯著的變化之一是角色移動速度大幅提升，使整體節奏更加快速，減少玩家在地圖中來回移動的時間成本。同時，系列經典的「碰撞戰鬥」系統也進一步優化，讓攻擊判定更加順暢。不過，由於判定機制的特性，遊戲中出現某些可以利用地形進行無傷擊殺的情況，例如貼牆移動即可持續攻擊敵人，這在無形中降低整體難度。

此外，延續並強化魔法系統的設計。可以使用火球等攻擊魔法，也能透過變身魔法變為魔物與特定 NPC 溝通，這些能力在後期探索薩爾蒙神殿時尤其關鍵。值得注意的是，FC 版本的等級上限與原版有所不同，一般認為其上限低於 PC 版，進一步影響角色成長節奏與戰鬥體驗。

在市場評價與版本比較方面，FC 版普遍被認為比前作的 FC 移植更加成熟，甚至加入簡化版的開場演出，在當時已屬難得。然而，遊戲難度也因此引發討論。雖然操作更加流暢，但戰鬥挑戰性相對降低，玩家普遍認為主要難點反而集中在薩爾蒙神殿龐大且略顯重複的迷宮設計上。此外，受限於卡匣容量，部分地圖結構與文本內容被簡化或刪減，使得某些道具用途不夠直觀，對初次接觸的玩家而言可能較為困惑。

在遊戲細節方面，FC 版也存在一些獨特機制與技巧。例如在城鎮或安全區域靜止不動時，角色體力會逐漸恢復；取得特定道具後，火球魔法甚至具備追蹤敵人的能力，提升戰鬥效率。同時，也保留當時常見的除錯模式，透過特定操作可觸發特殊功能，成為玩家之間流傳的祕技之一。

整體而言，FC 版《伊蘇 II》雖然在內容上有所取捨，但透過節奏加快與系統調整，呈現出更偏向家用主機風格的遊戲體驗。它不僅是一款成功的移植作品，也反映當時主機與電腦平台在設計理念上的差異，對於理解經典 ARPG 的演進具有相當價值。

The Famicom (FC/NES) version of Ys II: Ancient Ys Vanished – The Final Chapter was released on May 25, 1990 by Victor Musical Industries. Although it was originally developed for the PC-88 platform, this console adaptation features notable differences in gameplay feel and system design, resulting in a distinctly different experience from the original version.

The story continues directly from the events of Ys I. The red-haired adventurer Adol Christin, after collecting the six sacred Books of Ys, is transported to the legendary floating land of Ys. Upon arriving, he is rescued in the village of Lance by a young girl named Lilia, marking the beginning of a new journey. As the narrative unfolds, Adol must locate the descendants of the six priests and uncover the mystery of the Black Pearl. His quest ultimately leads him deep into the massive Solomon Shrine, where he faces the final boss, Darm, in a battle to restore peace and return the land of Ys to the earth.

To accommodate the limitations and characteristics of home consoles, the Famicom version introduces several major adjustments to gameplay systems. One of the most noticeable changes is the significantly increased movement speed, which greatly reduces travel time and creates a faster overall pace. The signature bump combat system is also refined, offering smoother collision detection and more responsive interactions. However, due to the nature of the system, certain exploitable behaviors exist, such as defeating enemies safely by positioning against walls, which can unintentionally lower the game’s difficulty.

The magic system, a defining feature of Ys II, is retained and plays a crucial role in both combat and exploration. Players can use offensive spells such as fire magic, as well as transformation abilities that allow Adol to take the form of monsters and communicate with otherwise hostile NPCs. These mechanics become especially important in the later stages of the game, particularly within the complex Solomon Shrine. The level cap in the Famicom version differs slightly from the original PC release, generally being lower, which further affects character progression and balance.

In terms of reception, the Famicom port is often regarded as a significant improvement over the FC version of the first game. It even includes a simplified animated opening, which was impressive for its time. However, the game’s difficulty has been a point of debate among players. While the controls are smoother and more accessible, the combat is often considered too easy, shifting the primary challenge toward navigating the large and sometimes repetitive dungeon design of the Solomon Shrine. Additionally, due to cartridge storage limitations, certain map layouts were simplified and item descriptions were reduced, which could make it harder for new players to fully understand the function of some items.

The game also features several interesting mechanics and tricks unique to this version. For example, Adol can recover health by standing still in towns or safe areas, and after obtaining specific items, fire magic can gain homing capabilities, making combat more efficient. Like many games of its era, the Famicom version also contains a hidden debug mode that can be activated through specific controller inputs, allowing for features such as free movement or instant leveling.

Overall, the Famicom version of Ys II represents a successful adaptation that balances technical limitations with thoughtful design changes. While it sacrifices some content and complexity, it delivers a faster-paced and more console-friendly experience, offering valuable insight into how classic action RPGs evolved across different platforms.