於1992年10月2日在PC Engine（PCE）Super CD-ROM² 平台推出的《亂馬 1/2：打倒、元祖無差別格鬥流！》（らんま1/2 打倒!元祖無差別格闘流!），是該系列在PCE上的第二部作品。由萬普（Banpresto）與日本電腦系統（NCS/Masaya）共同開發，承襲前作《囚禁的新娘篇》廣受好評的高品質動畫與聲優配音，並在此基礎上將「格鬥對戰」與「數位漫畫冒險」進行前所未有的深度融合，使其成為PCE平台上最能體現《亂馬 1/2》武術精神的作品之一。

充分發揮Super CD-ROM²的大容量優勢，邀請電視動畫版的原班聲優回歸，包括山口勝平（亂馬）、林原惠（女亂馬）以及日高範子（小茜）等。遊戲流程被劃分為劇情過場與正式格鬥兩大部分，玩家既能享受數位漫畫般的冒險，又能體驗刺激的格鬥對戰。其作畫水準極高，流暢的像素動畫與生動的武打特效，在當時16位元主機競爭中呈現出壓倒性的視覺效果，充分還原《亂馬 1/2》的動畫質感。

劇情方面，圍繞早乙女家與天道家共同承襲的「無差別格鬥流」展開。故事描述一名自稱「元祖無差別格鬥流」傳人的神秘強敵現身，指稱亂馬與其父玄馬所學武術皆為偽物，並向眾人發起挑戰。為守護家族名譽與道場威望，亂馬必須與響良牙、珊璞等夥伴聯手，揭開塵封已久、關乎流派起源的驚人真相。劇情充滿原作那種「荒謬卻認真」的宿命感，玩家將在不同場景中與熟悉角色切磋，最終與擁有禁忌武學的「元祖」傳人展開決定流派正統地位的生死對決。

操作設計上，採用雙軌制系統，兼具敘事與格鬥的樂趣。在非戰鬥期間，透過選單指令與角色互動、推進劇情，精美的全螢幕CG與完整真人語音演出讓玩家彷彿置身高品質OVA動畫之中，而對話選擇甚至會影響接下來戰鬥的初始狀態。在劇情進入衝突時，遊戲會切換為橫向捲軸格鬥模式，操作強調必殺技的時機掌握與氣力管理。透過十字鍵與按鈕組合施展火中天津甘栗拳、飛龍昇天破等招式，戰鬥過程中穿插魄力十足的特寫鏡頭，完美呈現漫畫中招式交鋒的張力。每一招每一式都配有語音喊招，極大地增強代入感。

本作在市場上獲得極高評價，被許多老玩家認為是PCE平台上最強的動漫改編遊戲。遊戲成功在「敘事」與「戰鬥」之間取得完美平衡，比起SFC平台偏向傳統格鬥的設計，PCE版更強調演出效果，玩家能在遊戲中聽到完整劇情對白並欣賞與動畫質感無異的戰鬥畫面，體驗沉浸感極佳。雖然以現代標準來看，打擊判定與平衡性略顯生澀，但在1992年，它提供的沉浸式體驗是無可比擬的。此作不僅是一款成功的遊戲，也是一部可以「玩」的《亂馬 1/2》長篇動畫，至今仍是復古遊戲收藏者眼中的珍品。

Released on October 2, 1992, for the PC Engine (PCE) Super CD-ROM², Ranma 1/2: Defeat the Original Unlimited Martial Arts! (らんま1/2 打倒!元祖無差別格闘流!) is the second installment of the series on the PCE platform. Developed jointly by Banpresto and Nippon Computer Systems (NCS/Masaya), the game inherited the highly praised high-quality animation and voice acting of its predecessor, Ranma 1/2: Captive Bride, while taking an unprecedented step in blending “fighting battles” with “digital comic-style adventure,” making it one of the PCE’s most faithful representations of the martial arts spirit of Ranma 1/2.

The game fully leveraged the large capacity of the Super CD-ROM², bringing back the original anime voice cast, including Kappei Yamaguchi (Ranma), Megumi Hayashibara (female Ranma), and Noriko Hidaka (Akane). The gameplay is divided into two main sections: story-driven sequences and actual combat, allowing players to enjoy both a digital comic-style adventure and thrilling fighting action. The visual quality is exceptional, with smooth pixel animations and dynamic martial arts effects that delivered overwhelming impact in the 16-bit era and faithfully captured the look and feel of Ranma 1/2’s anime.

The story revolves around the “Unlimited Martial Arts” inherited by the Saotome and Tendou families. A mysterious, powerful opponent claiming to be the successor of the “Original Unlimited Martial Arts” appears, denouncing the martial arts skills of Ranma and his father, Genma, as fake, and challenges them. To protect their family’s honor and dojo reputation, Ranma must team up with Ryoga and Shampoo to uncover the long-buried truth about the martial arts school’s origins. The narrative is filled with the series’ trademark blend of absurdity and seriousness, as players face familiar characters in various settings before engaging in a climactic showdown with the forbidden martial arts heir to determine the school’s true legacy.

The gameplay utilizes a dual-system design that combines narrative and combat. During non-combat periods, players interact with characters and progress the story through menu commands. The full-screen CG visuals and full voice acting create the feel of a high-quality OVA, with dialogue choices even affecting the initial state of upcoming battles. When the story enters conflict, the game switches to a side-scrolling fighting mode, emphasizing timing and energy management for special attacks. Players can execute moves like the Fireball Tianjin Chestnut Fist and Flying Dragon Rising Strike using directional inputs and button combinations, with cinematic close-ups during combat to capture the dramatic tension of the manga. Each attack is accompanied by voice cues, greatly enhancing immersion.

Ranma 1/2: Defeat the Original Unlimited Martial Arts! received high praise upon release and is regarded by many longtime fans as the strongest anime-adapted game on the PCE. The game achieves a perfect balance between storytelling and combat, emphasizing cinematic presentation over the more traditional fighting approach of the SFC versions. Players can hear full dialogue and enjoy combat that matches the quality of the anime, providing an unparalleled sense of immersion. While modern standards may find the hit detection and balance somewhat rough, in 1992, it delivered an unmatched interactive experience. This title is not just a successful game—it is a playable Ranma 1/2 long-form anime, remaining a highly prized classic among retro game collectors.