由 Jaleco 於 1986 年 8 月 22 日在任天堂 Famicom（紅白機）上推出的《忍者茶茶丸君大冒險》（じゃじゃ丸の大冒険），是旗下招牌角色「忍者茶茶丸」系列的第二部作品。相較於初代以單一畫面為主的對戰式玩法，全面進化為橫向捲軸動作遊戲，大幅拓展冒險的規模與節奏，成為許多玩家童年記憶中極具代表性的經典和風動作作品。

在整體呈現上，成功將遊戲從靜態畫面過渡到流暢的捲軸關卡，讓探索與移動更具連續感。視覺方面延續系列可愛的二頭身風格，場景設計則從傳統日本村落、陰森墓地一路延伸到充滿幻想感的雲端世界，展現出濃厚的和風奇譚氛圍。音樂採用節奏明快的 8 位元旋律，融合祭典風格的音色，搭配手裏劍投擲的清脆音效，營造出既活潑又帶有挑戰性的忍者冒險體驗。

故事劇情承接前作，邪惡妖怪首領鯰魚太夫再次現身，擄走櫻花公主。為了拯救心儀的對象，小忍者茶茶丸毅然離開原本的領地，踏上橫跨各地的遠征旅程。玩家將在二十多個關卡中對抗各式各樣的日本妖怪，包括雪女、化貓與百目怪等經典角色。整體敘事走的是王道英雄路線，以純愛、修行與除魔為核心主題，最終目標是攻入敵方據點，救出公主並恢復和平。

在操作系統上，延續前作的核心精神，同時加入更豐富的動作要素。玩家主要透過投擲手裏劍進行遠距攻擊，但同時也保留「踩頭」這一重要機制，透過跳躍踩踏敵人可以使其暫時失去行動能力，甚至直接擊敗部分敵人，形成遠近搭配的戰鬥節奏。

此外，擊敗敵人後掉落的靈魂可供收集，用於累積分數與獎勵，而場景中隨機出現的特殊道具則能觸發變身機制。當玩家收集到特定組合後，茶茶丸便能召喚出巨大的蝦蟆「伽馬」，進入近乎無敵的狀態，並能吞噬沿途的敵人。這種強力變身不僅提升了爽快感，也為遊戲節奏帶來明顯的起伏。

每個關卡都設有時間限制，以「魂」的逐漸減少來呈現，迫使玩家在快速推進與探索隱藏要素之間取得平衡。關卡中的可破壞磚塊與地形設計，也讓玩家能挖掘隱藏的金幣或道具，增添探索的樂趣與策略性。

在市場評價方面，以其親民的操作手感、討喜的美術風格以及良好的耐玩度獲得高度好評。評論普遍認為 Jaleco 成功將初代的玩法擴展為更完整的冒險體驗。儘管部分玩家認為動作判定較為寬鬆、關卡略顯重複，但整體節奏流暢，加上蝦蟆變身帶來的爽快感，使其成為紅白機早期相當受歡迎的作品之一。普遍而言，本作被視為「茶茶丸」系列真正打響知名度的關鍵之作，也為後續續作與相關發展奠定穩固的基礎。

Released by Jaleco on August 22, 1986, for the Nintendo Famicom (NES), Jajamaru no Daibouken (じゃじゃ丸の大冒険) is the second entry in the company’s signature “Ninja Jajamaru” series. Unlike the original game, which focused on single-screen platform-style encounters, this sequel evolved into a side-scrolling action game, significantly expanding the scale of Jajamaru’s adventure. For many players, it remains a defining example of classic Japanese-style action games from their childhood.

In terms of presentation, the game showcases a smooth transition from static screens to scrolling stages, giving the gameplay a greater sense of movement and progression. Visually, it retains the series’ charming super-deformed (chibi) art style, with environments ranging from traditional Japanese villages and eerie graveyards to mysterious cloud realms. The music features upbeat 8-bit compositions with a strong festival-like atmosphere, and when combined with the crisp sound of shuriken throws, it creates a lively yet challenging ninja adventure tone.

The story continues from the previous installment, where the evil yokai leader Namazu Dayuu once again causes chaos by kidnapping the beautiful Princess Sakura (Sakura Hime). Determined to rescue her, the young ninja Jajamaru sets out on a long journey beyond his homeland. Throughout more than twenty stages, he must battle a wide variety of traditional Japanese monsters, including snow spirits, shapeshifting cats, and multi-eyed creatures. The narrative follows a classic heroic formula centered on devotion, training, and exorcising evil, culminating in a final confrontation within the enemy’s stronghold.

Gameplay builds upon the foundation of the first title while introducing more dynamic mechanics. Players primarily attack by throwing shuriken, but an essential technique is jumping on enemies’ heads to stun or defeat them, especially those with higher durability. This combination of ranged attacks and close-range stomping creates a rhythmic and tactical combat flow.

Another key feature is the collection system tied to defeated enemies. Spirits dropped by enemies can be gathered for points and bonuses, while special items scattered throughout stages can trigger transformations. By collecting a specific set of items, players can summon the giant toad Gama, allowing Jajamaru to ride it in an invincible state and devour enemies with ease. This mechanic adds bursts of power and excitement to the gameplay.

Each stage is also governed by a time limit, represented through a decreasing spirit counter. Players must balance speed and exploration, using breakable blocks and terrain features to uncover hidden coins and helpful items. This environmental interaction adds an extra layer of depth beyond straightforward platforming.

Upon release, Jajamaru no Daibouken received strong praise for its accessible gameplay, appealing style, and high replay value. Critics noted that Jaleco successfully expanded the original game’s concept into a broader adventure format. While some experienced players found the mechanics slightly forgiving and the stage design somewhat repetitive, the game’s fast-paced action and the satisfying “Gama transformation” made it widely popular. It is generally regarded as the breakout title that established the long-term success of the Jajamaru franchise and secured its place as a beloved classic in the early Famicom era.