《瑪利歐與索尼克 AT 2020 東京奧運》（Mario & Sonic at the Olympic Games Tokyo 2020）是任天堂與SEGA聯手製作的體育競技遊戲，於2019年11月1日在Nintendo Switch平台推出。延續兩大經典遊戲角色陣營—任天堂的瑪利歐與SEGA的索尼克，帶領眾多熟悉角色一同參與奧運盛會，是為慶祝2020年東京奧運而推出的官方授權遊戲作品之一。

本作首次在Switch平台登場，不僅支援本地多人同樂，也全面支援線上對戰，並包含豐富多樣的奧運項目，從經典田徑到新加入的滑板、攀岩等比賽，遊戲內容涵蓋21種奧運運動與迷你遊戲。除此之外，最吸引人的，是其融合懷舊風格的「復古模式」，將部分項目以8-bit與16-bit像素風格重新詮釋，致敬1980年代的任天堂與SEGA經典遊戲時代，這對老玩家來說是一種滿滿的情懷。

雖然是派對體育遊戲，但意外地加入充滿趣味的劇情模式。故事從瑪利歐、索尼克與蛋頭博士（Dr. Eggman）與庫巴（Bowser）一行人因一台「東京64」復古主機被吸入虛擬的1964年奧運世界開始展開。在這個懷舊的8-bit世界中，他們必須通過各種經典奧運項目來尋找回到現代的方法。另一方面，在現實世界的角色們也要努力破解謎團，讓大家重聚。這樣的劇情為遊戲增添敘事動力，也讓角色之間的互動充滿趣味。

在操作方面，支援多種操作方式，可依喜好選擇使用Joy-Con體感揮動來模擬動作，或僅用按鍵進行操作。這讓不同年齡層的玩家都能輕鬆上手。某些比賽如射箭、游泳或短跑能用揮動控制器達到更具臨場感的操作方式，但也提供傳統按鍵模式供玩家更穩定表現。

關卡設計對應各種奧運項目，例如100公尺短跑、桌球、拳擊、體操、馬拉松等，每項運動皆有不同角色能力搭配與操作節奏。加上不同模式中的挑戰任務與特殊條件，使得每個項目不只是單一的比賽，還包含策略與技巧成分。復古模式中的項目如老式跳遠、射擊與體操馬術，則更偏向動作與節奏結合，玩法獨特。

市場評價方面，獲得中上的整體評價。媒體對其豐富的遊戲內容與復古創意給予肯定，認為它成功將奧運氛圍與任天堂、SEGA的遊戲魅力結合在一起。劇情模式雖不算深奧，卻有趣且富娛樂性，對派對遊戲來說是意外的加分。不過部分批評也集中在操作手感與項目平衡上，有些比賽玩法偏重運氣或體感操作過於敏感，會影響連線競技時的穩定性。

總體來說，《瑪利歐與索尼克 AT 2020 東京奧運》是集體育競技、懷舊與派對樂趣於一身的遊戲，不僅適合家庭聚會、朋友同樂，也適合獨自享受劇情模式與角色互動。隨著東京奧運這個全球焦點背景的加持，成功結合經典IP與現代體育文化，成為Nintendo Switch平台上值得收藏的合作型遊戲代表作。

Mario & Sonic at the Olympic Games Tokyo 2020 is a sports-themed crossover game developed in collaboration by Nintendo and SEGA. Released on November 1, 2019, for the Nintendo Switch, it brings together two of the most iconic gaming universes—Nintendo's Mario and SEGA's Sonic the Hedgehog. Featuring a wide cast of familiar characters from both franchises, the game celebrates the spirit of the Tokyo 2020 Olympics as one of the officially licensed Olympic video games.

Making its debut on the Nintendo Switch, the game supports both local multiplayer and online competitions. It boasts a wide variety of Olympic events, ranging from traditional athletics like track and field to newer sports such as skateboarding and sport climbing. In total, the game features 21 Olympic disciplines and various mini-games. One of the standout features is the "Retro Mode", a nostalgic twist that reimagines select events in 8-bit and 16-bit pixel art, paying homage to the golden age of gaming from the 1980s—a true delight for long-time fans of classic Nintendo and SEGA titles.

Despite being a party-style sports game, the title surprisingly includes a full-fledged story mode. The plot kicks off when Mario, Sonic, Dr. Eggman, and Bowser are sucked into a retro gaming console known as the "Tokyo '64," sending them into a pixelated version of the 1964 Olympic Games. Trapped in this 8-bit world, the characters must compete in various vintage Olympic events to find a way back to the present. Meanwhile, their companions in the modern world work to solve the mystery and reunite everyone. This dual-world narrative adds an unexpected storytelling dimension and injects humor and charm into the characters' interactions.

In terms of controls, the game offers multiple play styles to suit player preference. You can choose to use the Joy-Con controllers with motion controls to simulate real-life movements or opt for traditional button-based gameplay for more precision. Events such as archery, swimming, and sprinting allow for motion input to enhance immersion, though button input is always available for players who prefer a steadier experience. This versatility makes the game accessible to players of all ages.

Each event is uniquely designed to reflect its real-world Olympic counterpart. Sports like the 100-meter dash, table tennis, boxing, gymnastics, and marathon races require different character strengths and gameplay approaches. Beyond simple competitions, each event often includes specific challenges and unique conditions, adding layers of strategy and skill. In Retro Mode, players experience classic events like long jump, shooting, and equestrian in a style that blends action and rhythm mechanics, offering a fresh gameplay twist.

In terms of reception, the game received generally positive feedback, though not without some criticisms. Critics praised the game's rich content variety and creative use of retro aesthetics, noting that it successfully captures the Olympic atmosphere while merging it with the fun of the Mario and Sonic franchises. The story mode, while not particularly deep, is entertaining and a welcome addition for a party-centric title. Some negative feedback was aimed at inconsistent controls and imbalanced event design. Certain mini-games rely too heavily on luck or overly sensitive motion controls, which can affect competitive online play.

Overall, Mario & Sonic at the Olympic Games Tokyo 2020 blends athletic competition, nostalgia, and party-game fun into one cohesive package. It’s ideal for family gatherings, multiplayer fun with friends, or solo enjoyment of the quirky story mode and character interactions. With the real-world backdrop of the Tokyo Olympics adding excitement, the game successfully combines beloved IPs with the modern celebration of sports, making it a notable and collectible crossover title on the Nintendo Switch.