於1991年8月30日在Neo Geo 街機基板（MVS）正式登場，並隨後移植至家用主機（AES 與 CD）的《小拳王傳說》（Legend of Success Joe／あしたのジョー伝説），是由Wave Corp 開發、SNK發行的一款結合橫向捲軸動作與拳擊對戰的作品。改編自日本國民級漫畫《あしたのジョー》，本作誕生於格鬥遊戲尚在萌芽的年代，嘗試透過遊戲形式重現主角矢吹丈那段燃燒生命般的熱血與悲壯歷程，在 Neo Geo平台上留下極具個性的早期代表作。

在基本呈現上，充分運用Neo Geo初期優異的色彩表現能力，將原作者千葉徹彌筆下充滿張力的人物線條轉化為大型且細膩的點陣圖像。整體畫面瀰漫著濃厚的昭和時代氛圍，從淚橋河畔的破敗景象，到簡陋卻充滿汗水氣息的拳擊場，再到燈光閃耀的後樂園體育館，每個場景都細緻呈現出原作中夾雜貧困與夢想的底層社會感。角色表情的刻畫尤其令人印象深刻，無論是承受重擊時的扭曲神情，還是奮力反擊時的決絕眼神，都透過畫面縮放與震動效果強化臨場感。配樂則在憂鬱與激昂之間擺盪，搭配沉重的拳擊音效與語音演出，營造出一種近乎悲劇詩般的拳壇氛圍。

劇情方面，高度忠於原著，玩家將化身為叛逆且天賦異稟的少年矢吹丈。故事從他在貧民區邂逅落魄教練丹下段平開始，歷經少年院的鍛鍊與成長，逐步踏上拳擊之路。過程中，他與宿命對手力石徹展開一場充滿犧牲與執念的對決，並最終挑戰世界冠軍荷西·曼多薩。這段旅程不只是競技的勝負，更是一場關於自我價值與靈魂救贖的試煉。遊戲忠實重現原作中的關鍵橋段，包括力石為減重付出的慘烈代價，以及丈在面對失去摯友後重新振作的心路歷程，最終引向那句經典的象徵——燃燒殆盡、化為雪白灰燼的結局。

在操作設計上，展現出與同時期格鬥遊戲截然不同的結構。遊戲分為橫向過關與拳擊對戰兩大部分，在部分章節中，玩家需於街頭場景中對抗各種敵人，展現丈在底層社會中鍛鍊出的野性戰鬥力；而當進入拳擊賽事時，視角則轉為專業擂台對決，操作簡化為左拳、右拳與防禦，但實際上卻極度講究節奏與判斷。玩家需要觀察對手的出拳節奏與破綻，透過閃躲與反擊尋找致勝機會。本作的一大特色在於「鬥志槽」系統，當角色承受攻擊或進行挑釁時會逐漸累積，一旦達到高點，便能施展威力強大的必殺一擊，並伴隨戲劇化的演出效果，重現原作中那種在絕境中反撲的精神核心。

在市場評價方面，這是極具爭議卻同時備受尊重的作品。評論普遍肯定其對原作劇情的高度還原，以及充滿情感張力的演出，認為它成功捕捉漫畫中那份沉重而真實的「拳擊人生」。然而，其操作手感偏向硬派，角色動作略顯僵硬，加上電腦 AI 難度設計偏高，使得一般玩家難以順利通關，也讓遊戲在普及性上受到限制。即便如此，本作仍被視為Neo Geo初期極具實驗精神的代表之一，它不追求華麗連段或爽快節奏，而是專注於呈現一種關於掙扎、意志與燃燒的敘事體驗。對於喜愛《あしたのジョー》的玩家而言，這不僅是遊戲，更是一段可以親身參與的靈魂旅程，在2D遊戲的黃金年代中留下難以磨滅的情感印記。

Released on August 30, 1991, for the Neo Geo arcade system (MVS) and later ported to home consoles (AES and CD), Legend of Success Joe (あしたのジョー伝説) is a hybrid side-scrolling action and boxing game developed by Wave Corp and published by SNK. Based on the iconic Japanese manga Ashita no Joe, the game emerged during the early formative years of fighting games and sought to recreate the fiery, tragic journey of its protagonist, Joe Yabuki. In doing so, it became one of the more distinctive early titles on the Neo Geo platform.

In terms of presentation, Legend of Success Joe made strong use of the Neo Geo’s early color capabilities, translating the expressive and dynamic character designs of manga artist Tetsuya Chiba into large, detailed sprites. The visuals are steeped in a strong Showa-era atmosphere, from the rundown riverside of Namidabashi to humble boxing gyms and the brightly lit Korakuen Hall. Each setting carefully reflects the original story’s themes of poverty, struggle, and aspiration. Particularly notable is the game’s portrayal of character expressions—whether it’s Joe enduring a brutal hit or unleashing a desperate counterattack, the use of screen zoom and impact effects adds a powerful sense of immersion. The soundtrack complements this tone with a mix of melancholic and intense compositions, paired with heavy punch sound effects and voiced dialogue to create a dramatic, almost elegiac boxing experience.

The story closely follows the original narrative, placing players in the role of Joe Yabuki, a rebellious yet gifted young man. His journey begins with a chance encounter with the washed-up trainer Danpei Tange in the slums, leading him into the world of boxing. Along the way, he faces his fated rival Toru Rikiishi in a battle defined by obsession and sacrifice, before ultimately challenging the world champion José Mendoza. More than just a sports story, the narrative explores themes of identity, redemption, and personal resolve. The game faithfully recreates key moments from the manga, including Rikiishi’s extreme weight-cutting ordeal and Joe’s emotional struggle after loss, culminating in the legendary ending that symbolizes total exhaustion—burning out completely into pure white ash.

From a gameplay perspective, Legend of Success Joe stands apart from traditional fighting games of its era. It is divided into two main components: side-scrolling stages and boxing matches. In certain chapters, players must fight through street thugs in scrolling stages, reflecting Joe’s rough, street-honed fighting instincts. When transitioning into the ring, however, the gameplay shifts to a more focused boxing system with simple controls—left punch, right punch, and guard—but demanding precise timing and observation. Players must read their opponent’s rhythm and openings, using evasive movement and counterattacks to secure a knockout. A standout feature is the “fighting spirit” gauge, which builds as Joe takes damage or taunts opponents. Once filled, it allows players to unleash a powerful special attack accompanied by dramatic visual effects, capturing the essence of Joe’s relentless comebacks under pressure.

Critically, Legend of Success Joe received a mixed yet respectful reception. Reviewers widely praised its faithful adaptation of the source material and its emotionally charged presentation, recognizing it as a heartfelt tribute that resonates deeply with fans of the original manga. However, its stiff mechanics and notably high difficulty—especially due to challenging AI—made it less accessible to casual players. As a result, it never achieved the widespread popularity of other fighting games on the platform. Even so, it is often regarded as a unique and experimental early Neo Geo title. Rather than focusing on flashy combos or fast-paced action, it emphasizes storytelling, struggle, and emotional weight. For fans of Ashita no Joe, it remains an irreplaceable experience—a playable embodiment of one of manga’s most powerful narratives, and a poignant relic of the golden age of 2D gaming.