1986 年在磁碟機推出的《兵蜂 2：拯救西那蒙博士》（Moero! TwinBee: Rescue Dr. Cinnamon!），之後復刻在紅白機卡帶。在 KONAMI 經典射擊系列《兵蜂》（TwinBee）中，是一款極具實驗性與分歧評價的作品。

與系列其他作品不同，最大的特色在於它大膽採用「縱向與橫向捲軸交替」的關卡設計，是整個系列中唯一如此操作的一代。這種設計在當時相當前衛，也讓玩家體驗到截然不同的射擊節奏，但同時也帶來不少適應上的挑戰。

劇情方面，天才科學家西那蒙博士遭到邪惡的加特拉克提卡軍團綁架，兵蜂、心蜂以及新加入的三號機「格溫蜂」緊急出動，展開一場橫跨宇宙與敵方基地的救援行動。整體故事雖然簡單，但充滿典型 80 年代科幻與卡通式的輕快風格。

在玩法上，採用關卡輪替結構：奇數關卡維持傳統的縱向捲軸射擊，而偶數關卡則改為橫向捲軸。這種切換讓遊戲在節奏與操作感上產生明顯變化，也成為本作最具爭議但也最具記憶點的設計之一。

另一個極為罕見的特色，是支援三人同時遊玩。透過擴充裝置，同時操控兵蜂、心蜂與格溫蜂三架飛機進行合作射擊，這在紅白機時代幾乎是獨一無二的體驗，讓整個畫面充滿混亂卻有趣的合作火力。

經典的「鈴鐺強化系統」也在本作中延續。射擊雲朵後會掉落鈴鐺，透過持續射擊改變顏色來獲得不同能力。不過在橫向關卡中，由於視角與空間變化，控制鈴鐺變得更加困難，也提高操作門檻。

三機協同攻擊也是本作的重要特色之一，根據飛機排列方式不同，可以發動不同型態的合體火力，在 Boss 戰中具有關鍵戰略意義。

整體評價方面，屬於「創新但兩極」的作品。雖然縱橫切換與三人遊玩獲得肯定，但部分玩家認為橫向關卡手感較為生硬，節奏也不如純縱向作品流暢，因此系列後續作品如《兵蜂 3》回歸更純粹的縱向設計。

音樂依然維持 KONAMI 一貫的高水準，充滿活力與節奏感，強化了整體輕快又熱鬧的遊戲氣氛。

總結來說，《兵蜂 2》是一款充滿野心的實驗之作，它打破了射擊遊戲的單一形式，雖然沒有成為系列的固定方向，但在 8-bit 時代留下了極具代表性的創新印記。

Released in 1986, Moero! TwinBee: Rescue Dr. Cinnamon! is a highly distinctive and experimental entry in KONAMI’s early shoot ’em up lineup, part of the classic TwinBee series TwinBee.

Unlike most entries in the franchise, this sequel stands out for its bold structural experiment: it is the only game in the series that alternates between vertical-scrolling and horizontal-scrolling stages. This design choice made it one of the most unusual and discussed shoot ’em ups of its era.

The story follows the kidnapping of the genius scientist Dr. Cinnamon by the evil Gatlantis forces. TwinBee, WinBee, and the newly introduced third ship GwinBee are dispatched on a rescue mission that spans both aerial battles and ground-base infiltration, giving the adventure a broader sci-fi scope than its predecessor.

Gameplay-wise, the most notable innovation is the alternating stage structure. Odd-numbered stages use traditional vertical scrolling gameplay, while even-numbered stages switch to horizontal scrolling. This was a bold attempt to diversify the shooting experience, but it also significantly changed the pacing and control feel between stages.

Another major highlight is its three-player support. With the help of an accessory adapter, three players can simultaneously control TwinBee, WinBee, and GwinBee—making it one of the rare NES/Famicom-era games to support true three-player cooperative play. This feature added a chaotic but exciting multiplayer dynamic that was almost unheard of at the time.

The signature bell power-up system returns, allowing players to shoot clouds to spawn bells that change color and grant different abilities. However, in horizontal stages, controlling and collecting bells becomes more challenging due to the directional shift and screen layout, adding an extra layer of difficulty.

Cooperative mechanics are also expanded. Depending on ship positioning, players can perform combined attacks or formation-based firing patterns, which become especially important during boss encounters.

Reception was mixed. While the ambition of mixing vertical and horizontal gameplay was praised, many players found the horizontal stages less intuitive, with more awkward hit detection and harder bell control. This experimental direction ultimately led the series to return to pure vertical scrolling in later entries such as TwinBee 3.

The music remains a strong point, with KONAMI delivering energetic and memorable tracks that reinforce the game’s upbeat and playful identity.

Overall, Moero! TwinBee is remembered as an ambitious but divisive experiment—an important step in the evolution of the series that showcased KONAMI’s willingness to push boundaries in 8-bit game design, even if not all of its ideas became permanent staples.