《初代熱血硬派 くにおくん》於1992年8月7日在超級任天堂（Super Famicom）平台推出，是熱血系列在16位元主機上的第一部作品。雖然標題帶有「初代」之名，但它並非單純的復刻作，而是將系列原本「硬派不良少年」風格與當時流行的動作角色扮演（A-RPG）元素結合的全新嘗試，呈現出比紅白機時期更厚重、更沉浸的遊戲體驗。

由Technōs Japan開發與發行，是系列從8位元過渡到16位元時期的重要里程碑。遊戲捨棄過往二頭身、Q版造型，改採較為寫實的人物比例，畫風也更貼近熱血硬派最初的街頭格鬥氛圍。支援1至2人同時遊玩，場景從校園擴展到繁華的大阪街道。利用超任的色彩與音效性能，營造出充滿昭和末期至平成初期喧囂且危險的都市氣息。

故事描述熱血高校的國夫（Kunio）與阿力（Riki）一行人前往大阪進行修學旅行。本應輕鬆的行程卻因當地暴走族及黑幫組織「大阪連合」的敵意而陷入混亂。國夫的朋友遭到襲擊，兩人甚至捲入當地地下勢力的權力鬥爭。為了救回同伴並維護熱血男兒的尊嚴，國夫與阿力深入大阪鬧區、地下鐵和廢棄工廠，一路打敗各個區域的頭目，揭開大阪連合背後的陰謀。

在操作與系統上，結合精細的捲軸動作玩法與 RPG 成長系統。使用A鍵攻擊、B鍵踢腿、X鍵跳躍，L/R鍵則用於防禦或施展特殊投擲技。最核心的特色是「等級與裝備系統」：擊敗敵人可獲得經驗值，提升等級後角色的體力、攻擊力與防禦力都會增加。玩家還能進入大阪各地商店購買鞋子、衣服或飾品強化能力，甚至能購買一次性恢復道具，使遊戲具有強烈的動作RPG感。

遊戲還重視敘事與場景設計，國夫需與NPC互動以取得線索，並可搭乘地下鐵在梅田、難波等地區之間穿梭，擴展探索感。這種在捲軸動作遊戲中少見的敘事方式，使遊戲更具代入感。

市場評價方面，本作頗具爭議。許多老玩家高度讚賞其「寫實且陰暗」的不良少年氣息，認為這才是熱血系列的靈魂。遊戲成功營造出在異地作戰的孤獨感與壓迫感，打擊感沉重而扎實，音樂結合演歌風格與搖滾元素，更增強沉浸感。

不過，由於系統較複雜（如緩慢的升級過程）及部分場景判定嚴苛，遊戲也受到一些批評。最讓玩家頭痛的是「密碼存檔系統」，超長密碼容易抄錯，加上遊戲存在少量Bug。然而，這款遊戲仍被視為超任平台上不可多得的硬派格鬥佳作，也為後續更具電影感的《國夫們的挽歌》鋪平道路。

Shodai Nekketsu Kōha: Kunio-kun, released on August 7, 1992, for the Super Famicom, represents the Nekketsu series’ first entry on the 16-bit platform. Despite the title suggesting a “first generation” or retrospective, it is not a simple remake. Instead, the game blends the original “hardcore delinquent” style of the series with the popular action RPG elements of the early 1990s, creating a heavier, more immersive experience than the earlier Famicom titles.

Developed and published by Technōs Japan, this game marks an important milestone for the franchise as it transitions from 8-bit to 16-bit hardware. The previous chibi, Q-style characters are replaced by more realistic proportions, giving the visuals a street-fighting authenticity that harkens back to the earliest Nekketsu Kōha. The game supports one to two players and expands the setting from school grounds to the bustling city of Osaka. By utilizing the Super Famicom’s enhanced color palette and audio capabilities, it immerses players in a lively yet dangerous urban atmosphere reminiscent of late Showa and early Heisei Japan.

The story follows Kunio and Riki from Nekketsu High on a school trip to Osaka. What begins as a lighthearted journey quickly turns chaotic as local gangs and the Osaka Rengō criminal organization target the Tokyo visitors. Kunio’s friends are attacked, and the duo becomes entangled in the city’s underground power struggles. To rescue their companions and protect their honor, Kunio and Riki navigate crowded districts, subway tunnels, and abandoned factories, defeating regional bosses and uncovering the conspiracy behind the Osaka Rengō.

Gameplay combines precise beat ’em up mechanics with deep RPG growth systems. Players use the A button for punches, B for kicks, and X for jumps, while L and R allow defensive moves or special throws. A core feature is the leveling and equipment system: defeating enemies grants experience points, which increase health, attack, and defense as characters level up. Players can also purchase shoes, clothing, accessories, and consumable items at Osaka shops to enhance stats, creating a strong action-RPG feel.

The game also emphasizes narrative elements, with dialogue and scene transitions that require Kunio to interact with NPCs to obtain clues. Players can travel between districts like Umeda and Namba via subway, expanding the game’s exploration and giving it a sense of scale rarely seen in beat ’em ups of that era.

Critical reception was mixed but notable. Fans praised the return to a realistic, darker delinquent atmosphere, seeing it as the series’ original spirit captured in 16-bit form. The game effectively conveys the tension and isolation of fighting in an unfamiliar city, with satisfying, weighty combat. Its music, blending enka-style melodies with rock elements, enhances the immersive experience.

However, some criticisms arose due to the complexity of the systems, such as slow leveling and strict scene mechanics. The password save system was cumbersome, with long codes prone to errors, and certain bugs persisted. Despite these issues, Shodai Nekketsu Kōha: Kunio-kun remains a rare example of a hard-hitting beat ’em up on the Super Famicom, laying the groundwork for the more cinematic follow-up, Shin Nekketsu Kōha: Kunio-tachi no Banka.