《洛克人極巨世界》又名《洛克人威利戰爭》是SEGA在Mega Drive平台上推出的經典平台動作遊戲作品，於1994年面世。將最初在任天堂紅白機上發售的《洛克人》、《洛克人2：威利博士的陰謀》和《洛克人3：威利博士的最終!?》進行全面重製，並在畫面、音樂和操作上做重新設計，同時加入全新的隱藏關卡「威利塔」，形成一個完整的遊戲合集。由水口工程（Minakuchi Engineering）開發，他們同時負責Game Boy平台上的《洛克人世界》系列（除第二代外），重製過程中對遊戲操作感、敵人AI和關卡設計都做多處調整，使之更加符合Mega Drive的硬體特性。

在劇情設定上，延續原作核心概念。經過三次被洛克人打敗後，邪惡的威利博士開發出時光機器，企圖回到過去改變歷史並再次挑戰洛克人。在威利博士的陰謀下，過去曾對抗過洛克人的機器人們被復活並四處作亂，威脅世界和平。為了阻止威利博士破壞歷史，萊特博士也開發時光機器，將洛克人送回過去，重新挑戰那些歷史上的對手。洛克人依序通過多個關卡，每個關卡的終點都會迎來與特定機器人的戰鬥。擊敗他們後，洛克人能獲得該機器人的特殊武器，用以應對接下來的挑戰。遊戲的核心玩法仍保留原作的高難度平台跳躍、精準射擊與策略性武器切換，但在細節和操作流暢度上有顯著提升。

在操作與系統方面，對原作進行統一與改善。三個遊戲的基礎操作標準化，例如無敵時間內碰到尖刺不再立即死亡，水下跳躍力增強，並統一部分敵人的耐久力與攻擊模式。特別是《洛克人1》的一些機制被修改，使其更接近《洛克人2》和《洛克人3》的遊戲體驗，提升遊戲連貫性與可玩性。此外，將原本依靠密碼記錄進度的方式改為電池存檔，可以隨時中斷與繼續遊戲。三款遊戲的音樂也經過重新編曲，畫面則以Mega Drive的16位圖像標準呈現，更加鮮明和流暢。

完成三款遊戲後，將解鎖全新的「威利塔」模式，這是一個獨立的挑戰關卡。威利塔結合前三代的敵人和陷阱，並加入原創頭目——「如意棒G」、「大洪水S」和「超風暴H」，靈感來自中國古典小說《西遊記》。在挑戰這三大頭目後，將進入威利塔內部進行最後決戰。威利塔允許玩家從前三代的武器中選擇八個攻擊型武器和三個輔助型武器，自由組合後進行連續關卡挑戰，每關結束後無法重複挑戰，但可在威利塔內重新搭配武器，增添戰略性與重玩價值。

市場評價方面，本作廣受好評，尤其被讚賞為將經典紅白機作品以全新面貌呈現於16位主機的成功典範。玩家和評論家一致認為，重製後的畫面、音樂以及操作手感都顯著提升，既保留原作的挑戰與樂趣，又改善遊戲性與流暢度。此外，威利塔模式的加入為資深玩家提供額外挑戰，使得遊戲耐玩度大幅增加。多年後，仍透過Nintendo Switch Online、Mega Drive Mini與Retro-Bit的實體卡帶在全球重現，證明其在洛克人系列以及平台動作遊戲歷史上的經典地位。

總體而言，《洛克人極巨世界》不僅是對經典作品的成功重製，也是Mega Drive平台上極具代表性的動作遊戲之一。它結合回顧與創新，讓新玩家能體驗系列初代魅力，同時為老玩家提供挑戰與懷舊的樂趣。

Rockman Mega World / Mega Man: The Wily Wars is a classic platform action game released for the Sega Mega Drive in 1994. It is a compilation that remakes the first three games in the original Mega Man series—Mega Man, Mega Man 2: Dr. Wily’s Revenge, and Mega Man 3: Dr. Wily’s Last Challenge!?—with updated graphics, rearranged music, and improved controls, while also adding a brand-new unlockable stage called the "Wily Tower." The game was developed by Minakuchi Engineering, who had previously worked on the Mega Man World series for the Game Boy (excluding the second entry). The development aimed to unify gameplay mechanics, refine enemy AI, and adapt the original NES games to the 16-bit capabilities of the Mega Drive hardware.

The story continues the original Mega Man narrative. After being defeated by Mega Man three times, the evil Dr. Wily secretly constructs a time machine to travel to the past, attempting to rewrite history and defeat the robotic hero in one of their early battles. Wily revives past Robot Masters to wreak havoc, threatening the peace of the world. To counter this threat, Dr. Light also develops a time machine, sending Mega Man back to confront these revived adversaries. Players guide Mega Man through a series of platform stages in any order, facing a Robot Master at the end of each stage. Defeating a boss grants Mega Man that boss’s special weapon, which can then be strategically used in subsequent levels. While retaining the high difficulty and precision platforming of the NES originals, the Mega Drive remake improves responsiveness, visual clarity, and overall gameplay balance.

Gameplay improvements and system changes are a key feature of The Wily Wars. Across the three remade games, mechanics were standardized. For example, Mega Man no longer dies instantly upon touching spikes during invincibility frames, underwater jumps gain extra buoyancy, and enemy durability and attack patterns are unified for consistency. Mega Man 1 received additional adjustments to align its mechanics with those of Mega Man 2 and Mega Man 3, creating a more coherent experience. The compilation also replaces the password save system of the original NES games with battery-backed save functionality, allowing players to continue from their progress at any time. Visuals were enhanced for the 16-bit hardware, and the soundtrack was re-arranged while retaining the iconic themes of the original trilogy.

A major highlight of the compilation is the unlockable Wily Tower mode, available after completing all three main games. Wily Tower combines elements from the first three games’ stages and enemies and introduces original bosses—the Genesis Unit—consisting of Buster Rod.G (inspired by Sun Wukong), Mega Water.S (Sha Wujing), and Hyper Storm.H (Zhu Bajie), drawing influence from the classic Chinese novel Journey to the West. After defeating these bosses, players face Dr. Wily in a final confrontation. In Wily Tower, players can equip Mega Man with eight attack-type weapons and three support-type weapons from any of the three main games, allowing for strategic customization. Each stage is a continuous challenge, and completed stages cannot be replayed in the same session, but weapons can be reconfigured, increasing depth and replayability.

Critically, Mega Man: The Wily Wars was well received. Reviewers praised it for successfully updating the NES classics for 16-bit hardware while preserving the challenge and spirit of the originals. The improved visuals, refined controls, and rearranged soundtrack elevated the gameplay experience. Wily Tower, in particular, offered an additional layer of challenge for veteran players, enhancing the game’s replay value. Over the years, the game has been made available on platforms like Nintendo Switch Online, the 2019 Mega Drive Mini, and Retro-Bit physical cartridges, reaffirming its status as a classic in both the Mega Man series and the broader platforming genre.

Overall, Rockman Mega World / Mega Man: The Wily Wars stands as both a faithful remake and an innovative reimagining, offering new players a chance to experience the series’ origins and longtime fans a nostalgic yet challenging adventure on the Mega Drive.