《天外奇蹟》（英文原名：UP，日文名稱：カールじいさんの空飛ぶ家）是根據皮克斯於2009年推出的同名動畫電影所改編的動作冒險遊戲，由Heavy Iron Studios開發，THQ發行，Wii版本同年上市。重溫電影中那段令人感動與冒險兼具的旅程，並透過互動玩法延伸角色之間的情感連結，特別是主角卡爾與小童軍羅素之間的關係。

劇情大致遵循電影主軸，一開始描述年邁的寡居老人卡爾·費雷德里克森為實現與亡妻的夢想，用氣球將整棟房子升空，飛往南美的「天堂瀑布」。卻意外發現小童軍羅素偷偷躲在門廊上，一段充滿危機與笑料的奇幻旅程就此展開。保留原作中的主要場景與角色，包括會說話的狗狗「小逗（Dug）」，邪惡探險家孟茲，以及那隻巨大的奇鳥凱文（Kevin）。但在情節安排上加入更多原創事件與冒險元素，讓玩家能體驗電影之外的新挑戰。

在操作方式上，充分利用雙控制器的體感互動。操縱卡爾與羅素兩人，並可在單人模式中切換操作角色，也支援雙人合作遊玩。卡爾作為主角之一，動作較為緩慢但可使用手杖進行攻擊或移動障礙物；而羅素則靈活敏捷，能攀爬、跳躍與使用各種童軍道具，例如繩索與望遠鏡來解謎與前進。部分關卡需要兩人合作才能解開機關，強調角色互補與搭檔合作。

關卡類型豐富多變，除傳統的橫向平台動作與探索之外，也有滑索、躲避障礙、潛行、追逐與解謎等元素。特定關卡會轉換為飛行視角，例如操控飄浮的房子閃避氣流與障礙。戰鬥方面雖不複雜，但會遇到各種小動物敵人與孟茲的機械部隊，需巧妙利用道具與環境設計來過關。

視覺風格則延續皮克斯電影的卡通風格，雖然受到Wii硬體限制，畫質與動畫無法達到原作細膩程度，但角色建模與表情仍保留卡爾的嚴肅、羅素的呆萌與動物角色的逗趣個性。背景場景如叢林、瀑布、飛船等都色彩鮮明，營造出一種歡樂而奇幻的氛圍。音樂與配音方面也忠實呈現電影的情感基調，包含主題旋律與角色語音，在互動中加強敘事沉浸感。

市場評價方面，主要針對兒童與家庭族群，整體設計簡單易懂、難度偏低，非常適合親子共玩或年幼玩家入門。評論普遍認為本作雖不具備高深的遊戲機制，但勝在忠實還原電影氣氛與角色魅力。特別是雙人合作模式，被不少玩家視為本作最大亮點，可一同體驗旅程、互助解謎，強化「共遊」的樂趣。

不過也有部分負面評論指出，關卡流程偏短，重玩性不高，敵人AI簡單、關卡設計略為重複，對於年齡較大的玩家而言可能缺乏挑戰性與刺激感。此外，由於劇情節奏相對線性，較少分支選擇或開放式探索空間，與當時一些進階冒險遊戲相比較為保守。

總體來說，這是在Wii平台上的改編遊戲，標準的動畫授權作品，雖然在玩法創新上並不突出，但它以溫馨又活潑的方式延續電影的核心價值：關於夢想、陪伴與冒險的意義。若喜歡電影原作，或想與朋友或家人共同進行不太困難、但充滿情感的小冒險，這就是一扇通往「天堂瀑布」的互動之門。

"Up" (Japanese title: カールじいさんの空飛ぶ家, English original: Up) is an action-adventure game based on Pixar’s 2009 animated film of the same name. Developed by Heavy Iron Studios and published by THQ, the Wii version was released in the same year. The game recreates the touching and adventurous journey from the movie, expanding on the emotional bonds between characters—especially the relationship between the elderly Carl Fredricksen and the young Wilderness Explorer, Russell—through interactive gameplay.

The story closely follows the film’s narrative. It begins with Carl, a widowed old man, attempting to fulfill the dream he shared with his late wife by lifting his house into the sky with thousands of balloons, aiming to reach the mythical Paradise Falls in South America. However, he unexpectedly discovers Russell clinging to the porch as a stowaway. From there, a whimsical and danger-filled journey unfolds. The game retains major locations and characters from the original movie, including Dug, the talking dog; the villainous explorer Charles Muntz; and the towering, exotic bird Kevin. To enrich the experience, the game also introduces original events and gameplay scenarios beyond the movie’s storyline, allowing players to take on new challenges within the familiar world.

Gameplay heavily incorporates motion controls using both the Wii Remote and Nunchuk. Players can control both Carl and Russell, either by switching between them in single-player or through two-player cooperative mode. Carl, being elderly, moves more slowly but can use his cane to attack or clear obstacles. Russell, on the other hand, is nimble and capable of climbing, jumping, and using his Wilderness Explorer tools—like ropes and binoculars—to solve puzzles and advance. Many puzzles and obstacles require teamwork, emphasizing the complementary nature of their abilities and the importance of cooperation.

The levels offer a variety of gameplay styles, ranging from traditional side-scrolling platforming and exploration to zip-lining, stealth segments, chase sequences, and environmental puzzles. Some stages switch to a flight-based perspective, such as guiding Carl’s floating house to avoid gusts of wind and airborne hazards. Combat remains simple but involves fending off various wildlife enemies and Muntz’s mechanical forces, often requiring creative use of tools and surroundings.

Visually, the game adopts a cartoonish style in keeping with Pixar’s aesthetic. While the Wii’s hardware limits prevent the game from matching the film’s visual fidelity, the character models preserve Carl’s stern demeanor, Russell’s wide-eyed charm, and the humorous traits of animal companions. The environments—lush jungles, cascading waterfalls, airships—are brightly colored and designed to evoke a whimsical, fantastical atmosphere. The audio design also stays true to the film, with familiar themes, expressive voice lines, and a heartwarming score that reinforces the story’s emotional core.

In terms of reception, the game was primarily aimed at children and families. Its straightforward design and low difficulty made it well-suited for younger players or cooperative play between parents and kids. While not complex in terms of game mechanics, critics generally appreciated its faithful adaptation of the film’s tone and characters. The co-op mode, in particular, was widely praised as the game’s standout feature—encouraging shared exploration and puzzle-solving, and enhancing the joy of playing together.

However, some criticism was directed at its short length, low replay value, simplistic enemy AI, and somewhat repetitive level design. For older or more experienced gamers, the lack of challenge and the linear story progression—offering little in terms of branching paths or open-world exploration—might make it feel underwhelming compared to more advanced adventure games of the time.

All in all, Up on the Wii is a standard movie tie-in game that doesn’t break new ground in gameplay innovation but succeeds in extending the spirit of the film in a cheerful, heartfelt way. It’s a gentle interactive journey about dreams, companionship, and adventure. For fans of the movie, or those looking to share a light and emotional co-op experience with family or friends, this game offers a charming gateway to Paradise Falls.