《雷神傳說 ～光之繼承者～》是SEGA於1994年在Mega Drive推出的動作角色扮演遊戲，由知名工作室Ancient製作，集合古代祐三的音樂、內村語的動作設計，以及古代彩乃、有賀ヒトシ的美術風格，是集結當時SEGA一線人才共同打造的經典之作。以爽快的戰鬥、能夠自由施展的連段動作、召喚系統與濃厚的奇幻冒險氛圍聞名，被視為Mega Drive後期最具代表性的ARPG 之一。

故事的舞台位於海洋王國「波塞多尼亞」，主角是這個國家的王子——魯奧。他在一次探索孤島遺跡時，被神秘的聲音引導而發現失落已久的「金之腕輪」。這件神器讓他得知另一個象徵破壞力量的「銀之腕輪」已落入邪惡之人手中，而對方正企圖復活古代魔人，引發世界毀滅級的災難。為了阻止陰謀，魯奧踏上旅程，借助金之腕輪的力量前往各地神殿，喚醒沉眠的精靈，並一步一步揭開銀之腕輪持有者的真面目。

魯奧擁有多樣化的攻擊方式。除了能夠使用短劍進行近戰，還能施展連續技與特殊動作，使戰鬥的節奏充滿動感與爽快感。提供多種武器，包括長劍、弓、爆彈等，雖然威力更強，但多為耐久性道具，使用一定次數後便會損壞，因此需要玩家在戰鬥中靈活取捨。魯奧也能跳躍、奔跑，透過不同動作組合進行更多元的攻擊與回避，這使得整體操作比當時許多同類作品更加流暢刺激。

最具特色的系統便是「金之腕輪」所召喚的四大精靈。水之精靈迪特能為魯奧回復生命；火之精靈伊夫利特攻擊力強，適合正面突破；影之精靈謝德能穿透障礙、延伸手臂撿取遠處物品，甚至在魯奧墜落時及時救援；綠之魔獸巴烏則可以破壞特定巨門，並能使時間緩慢，以便通過某些機關與陷阱。這些精靈的召喚方式相當獨特——必須對著象徵其屬性的物件施放腕輪之力，例如水面、火焰、影子或植物。精靈的能力不只用於戰鬥，也廣泛用於解謎與地形突破，使冒險過程更加立體與變化豐富。

隨著旅程推進，魯奧逐漸接近陰謀的核心。在故事的高潮部分，銀之腕輪的持有者格溫終於現身，他象徵的是創造之力的扭曲運用，以無盡破壞作為目的。魯奧與他之間的對決，不只是兩個王族後裔的宿命戰鬥，更是光與暗、創造與毀滅兩種力量最終的碰撞。劇情雖不複雜，但節奏緊湊、世界觀完整，至今仍被許多玩家視為SEGA 16-bit時代最具魅力的奇幻冒險之一。

操作手感在當時極具突破性，採取類似《怒之鐵拳》的動作戰鬥節奏，又結合《薩爾達傳說》式的地圖探索與解謎配置，使遊戲在動作性與RPG感之間取得高水平平衡。面對的敵人種類繁多，包括蛇類、巨鼠、重甲武士、魔物與大型頭目，透過跳斬、連段、投擲與精靈能力，可以用多種方式擊敗對手，形成極具爽快感的戰鬥節奏。

遊戲上市後即獲得玩家高度好評，被讚譽為Mega Drive後期的代表性ARPG，不僅音樂品質一流，動作手感優秀，畫面表現也遠超同時期作品。之後也多次被移植至Wii Virtual Console、Steam、iOS、Android、Mega Drive Mini等平台，更在歐美的《Sonic’s Ultimate Genesis Collection》中收錄，顯示SEGA對其品質的高度肯定。其續作《精靈王紀傳》於1996年在SEGA Saturn推出，被視為世界觀與系統的完整延伸。

總結而言，《雷神傳說 ～光之繼承者～》是集動作性、奇幻冒險與召喚系統於一身的經典ARPG。其精靈機制、爽快的武器操作、節奏明確的劇情與充滿魅力的美術風格，使它跨越多年仍具有極高完成度，被玩家視為SEGA時代不可錯過的經典之一。

“The Story of Thor: A Successor of the Light,” known in the West as Beyond Oasis, is a 1994 action role-playing game released for the Sega Mega Drive. Developed by Ancient and guided by several legendary creators—composer Yuzo Koshiro, designer Makoto Uchida, character designer Ayano Koshiro, and illustrator Hitoshi Ariga—the game blended fast-paced combat with an adventurous fantasy setting, giving the Mega Drive one of its most memorable ARPG experiences.

The story follows Prince Leo of the Kingdom of Poseidon, who is guided by a mysterious voice to an isolated island where he discovers the legendary Gold Armlet. This ancient artifact reveals that the bearer of the Silver Armlet is attempting to resurrect an ancient demon sealed long ago. Determined to stop this looming catastrophe, Leo embarks on a journey across the land, relying on the powers of the Gold Armlet to confront the darkness. Throughout the adventure, the prince encounters four elemental spirits—water, fire, shadow, and nature—each offering unique abilities that shape both the narrative and gameplay.

Although designed as an action RPG, the title stands out for its fluid combat and responsive controls, which were notably advanced for its era. Players can wield a variety of weapons, from knives and swords to bombs and enchanted blades, allowing combat to feel dynamic and impactful. The game introduces a system in which the Gold Armlet reacts to environmental cues—such as light, water, or fire—enabling Leo to summon one of the four spirits. Dytto, the water spirit, offers healing abilities; Efreet, born of fire, excels at direct attacks; Shade, the shadow spirit, extends and manipulates his form to retrieve distant objects or save Leo from falls; while Bow, the nature spirit, is a powerful beast capable of breaking barriers and altering the flow of time. Only one spirit may be summoned at a time, and managing their abilities becomes a core part of puzzle-solving and combat strategy.

Beyond its action-heavy design, the game hides a wealth of secrets, including powerful special weapons, dozens of collectible gems, and even complex input-based techniques that allow Leo to perform advanced attacks. These hidden elements deepened the game’s longevity and encouraged exploration long after the main storyline was completed.

Upon release, The Story of Thor was widely praised for its animation quality, energetic soundtrack, and the sense of momentum in its combat. Players and critics were impressed by how the game blended high-speed action with RPG progression elements, setting it apart from other fantasy titles of the period. Over the years, the game remained highly regarded, leading to multiple re-releases. It was made available on the Wii Virtual Console in 2007, later on Steam, and subsequently as part of various retro collections on platforms such as the PlayStation 3, Xbox 360, and Nintendo Switch. In 2019, it was selected as one of the built-in titles for the Sega Genesis Mini, reflecting its lasting popularity and status as a beloved classic. Its success eventually resulted in a Sega Saturn prequel, The Legend of Oasis, released in 1996.

Today, Beyond Oasis is remembered as one of Sega’s standout action RPGs—an ambitious work that combined the talents of renowned creators with a unique spirit-summoning system and a fast, satisfying combat design that still resonates with retro game fans around the world.