《七龍珠Z外傳：賽亞人滅絕計劃》（Dragon Ball Z Gaiden: Saiyajin Zetsumetsu Keikaku / ドラゴンボールZ外伝 サイヤ人絶滅計画）由萬代（Bandai）在任天堂Famicom（紅白機）推出，是紅白機上最後也是最具野心的七龍珠遊戲作品。最特別之處在於完全脫離原著漫畫劇情，採用原創劇本與全新反派，並徹底革新沿用多年的單張卡牌戰鬥系統，改為更具策略深度的卡牌連擊（Combo）系統，為8位元時代的龍珠遊戲劃下極其華麗且獨特的句點。

在技術表現上，展現萬代對紅白機硬體的最後極限榨取。畫面達到前所未有的精緻度，戰鬥場景不再只是單純對陣，而是導入動態背景與分鏡演出，角色施展必殺技時伴隨的震動效果與閃爍特效非常震撼。本作創造全新反派——來自茲夫爾星的科學家萊基博士以及他的終極兵器哈奇亞克，造型風格與動畫版高度統一。配樂則以神秘、科幻且略帶壓抑的電子音色為主，營造出面對未知高科技威脅的異樣感，與以往單純的熱血格鬥氛圍截然不同。

故事背景設定在「賽亞人篇」之後，講述曾被賽亞人毀滅的茲夫爾星倖存者 萊基博士，為了向僅存的賽亞人復仇，在地球各地散布名為德斯特隆瓦斯（Destron Gas）的劇毒裝置，企圖滅絕所有生命。玩家控制五位最強戰士——孫悟空、孫悟飯、貝吉塔、特南克斯與比克，前往世界各地破壞瓦斯產生裝置。隨著劇情發展，發現背後隱藏著強大的怨念能量，不僅要再次面對弗力札、克維拉等幻影強敵，最終還必須飛向黑暗行星，正面迎戰集結所有對賽亞人恨意而誕生的最終魔王哈奇亞克。

在操作上，進行徹底革新，將原本單調的卡牌對戰提升為具有深度策略的指令組合系統。不同於前作只需一張特定漢字卡即可施放招式，要求玩家按照特定順序選取多張卡片（例如「拳、拳、氣、投、瞬」）來組合出必殺技。必須熟記每位角色的招式表，或透過不斷試驗發現新的連擊組合。這種操作邏輯非常類似格鬥遊戲的「搓招」，大幅提升戰鬥的參與感與成就感。

採用俯視大地圖模式，可以自由選擇前往不同地點。戰鬥中除了管理體力（HP）外，氣力（KI）的管理變得極為關鍵，因為強力連擊會消耗大量能量，玩家需要在普通攻擊累積氣力與釋放強大招式之間取得平衡，戰術層面比前作更深奧。輔助卡片（如仙豆、界王等）依舊保留，用於長途征戰維持角色狀態。敵人AI顯著提升，每回合的出牌順序都可能決定勝負，使遊戲極度依賴邏輯與策略，也成為系列中最硬核的作品之一。

在市場評價上，被認為創新十足、難度極高但回味無窮。評論家高度讚賞萬代敢於在紅白機末期捨棄舊有成熟系統，轉而挑戰複雜的連擊機制。雖然對部分習慣直觀玩法的玩家來說，記招式表與應對高難度Boss有些吃力，但精良的製作水準與原創劇情仍贏得大量龍珠迷的忠實支持。市場普遍認為，本作是紅白機時代的一部異色傑作，不僅補完龍珠世界觀中關於茲夫爾星的歷史，其優秀的原創內容後來甚至被改編為動畫OVA與遊戲重製，充分證明其在七龍珠發展史上的重要地位。

Dragon Ball Z Gaiden: Saiyajin Zetsumetsu Keikaku (Dragon Ball Z Gaiden: Saiyajin Zetsumetsu Keikaku / ドラゴンボールZ外伝 サイヤ人絶滅計画) was released by Bandai for the Nintendo Famicom (NES) and stands as the last—and most ambitious—Dragon Ball title for the system. What makes this game particularly unique is that it completely departs from the original manga storyline, featuring an original script and villains. It also overhauls the long-standing single-card battle system in favor of a deeper and more strategic card combo system, marking a spectacularly distinctive conclusion for Dragon Ball games on the 8-bit platform.

Technically, Saiyajin Extinction Plan represents Bandai’s final push to maximize the Famicom hardware. The visuals are more detailed than ever, and battle scenes are no longer simple one-on-one encounters. Instead, dynamic backgrounds and cinematic framing are fully implemented, with impactful shake effects and flickering during special attacks. The game introduces entirely new antagonists: the scientist Dr. Lecky from Planet Zufful and his ultimate weapon Hachiark, whose designs align closely with the Dragon Ball animation style. The soundtrack features mysterious, sci-fi-tinged electronic tones that evoke the tension of facing unknown high-tech threats, a stark contrast to the straightforward high-energy fighting atmosphere of previous entries.

The story is set after the Saiyan Saga and centers on Dr. Lecky, a survivor of Planet Zufful, which had previously been destroyed by the Saiyans. Seeking revenge against the remaining Saiyans, he spreads a deadly device called Destron Gas across Earth with the goal of exterminating all life. Players control five of the strongest warriors—Goku, Gohan, Vegeta, Trunks, and Piccolo—and must travel to different locations to dismantle the gas-producing devices. As the plot unfolds, it becomes clear that a powerful vengeful energy is at work. Players face phantoms of past foes like Frieza and Cooler and ultimately travel to a dark planet to confront Hachiark, a final boss born from the collective hatred toward the Saiyans.

Gameplay is completely reimagined, elevating the formerly simple card battles into a sophisticated command combo system. Unlike previous games, where a single kanji card could trigger an attack, players now select multiple cards in specific sequences (e.g., “Punch, Punch, Ki, Throw, Instant”) to execute special attacks. Mastery requires memorizing each character’s move list or experimenting to discover new combos. This mechanic is akin to the “input commands” of fighting games, significantly increasing player engagement and satisfaction.

The game also features an overhead world map for free exploration. Beyond managing HP, KI (energy) management becomes critical because powerful combo attacks consume large amounts of energy. Players must balance building KI with executing devastating moves, adding a new layer of strategic depth. Support cards, like Senzu Beans and Supreme Kai items, remain available to maintain character status during long battles. Enhanced enemy AI means the order in which players play cards each turn can decisively influence the outcome, making logical planning crucial and creating one of the most hardcore experiences in the series.

Critically, Saiyajin Extinction Plan was praised for its innovation, high difficulty, and replay value. Reviewers lauded Bandai’s bold choice to abandon the old, familiar system late in the Famicom’s life, replacing it with a complex combo mechanic. While some players found memorizing move lists and facing high-difficulty bosses challenging, the game’s high production values and original storyline earned it a loyal following among Dragon Ball fans. It is widely regarded as a unique masterpiece of the Famicom era, enriching the Dragon Ball universe by fleshing out the history of Planet Zufful. Its outstanding original content was later adapted into an OVA and other game remakes, cementing its important place in Dragon Ball history.