《餓狼 群狼之證》（Garou: Mark of the Wolves）又名為《餓狼傳說 狼之烙印》是SNK於1999年推出的格鬥遊戲，屬於《餓狼傳說》（Fatal Fury）系列。最初在NEO GEO街機平臺上發布，後來移植到多個平台，包括Dreamcast、PlayStation 2和Xbox Live Arcade、Steam、PS Network、Switch、PS4、Xbox One。為《餓狼傳說》系列的第九部作品，引入新的角色和遊戲機制，並且繼承系列的經典戰鬥風格。

遊戲的劇情設定在餓狼傳說系列故事結束的十年後，即2005年。舞台設定在虛構的第二南鎮（Second Southtown），由吉斯·霍華德（Geese Howard）遺棄的兒子~洛克·霍華德（Rock Howard）擔任主角。他在母親去世後到處流浪，後來被泰瑞·柏格（Terry Bogard）收養並傳授格鬥技。為尋找自己身世的真相和確認自己的存在意義，洛克參加由凱恩·R·海因萊恩（Kain R. Heinlein）舉辦的格鬥比賽“King of Fighters: Maximum Mayhem”。

畫面採用傳統的2D格鬥遊戲機制，但引入許多新功能來增強遊戲體驗，包括基本攻擊、跳躍、擋格、投擲和特殊技能。通過四個按鈕進行操作：輕拳(A紐)、重拳(C紐)、輕腳(B紐)和重腳(D紐)。氣槽有分成兩種，分別是透過指令搭配輕攻擊進行超必殺技的S Power跟達到P Power就可透過指令搭配重攻擊使出EX超必殺技。

遊戲中加入"T.O.P. System"（Tactical Offensive Positioning），可以在生命條上選擇一個區域作為T.O.P.區域，當角色生命值在T.O.P.區域內時，會獲得額外的攻擊力加成和自動回血效果。

另一個新機制是“Just Defend”，這是一個擋格系統，當在敵人攻擊即將命中時的最後一刻擋格，會獲得一些生命值恢復和額外的反擊時間。這個機制鼓勵進行精確的防守操作，增加遊戲的深度和策略性。

總共角色多達十四位，每位都有獨特的招式和終極技能（超必殺技），需要通過特定的按鍵組合來釋放。需要熟悉每個人物的技能和連擊組合，才能在戰鬥中佔據優勢。

通過達成特定條件來解鎖隱藏角色和額外內容。例如通過在特定條件下完成遊戲來解鎖隱藏角色凱恩（Kain）和葛蘭特（Grant）。他們擁有強大的技能和特殊能力，為戰鬥增添更多的挑戰和樂趣。

整體而言，這款經典的2D格鬥遊戲，以其精美的畫面、流暢的操作和深度的遊戲機制受到玩家和評論家的廣泛讚譽。豐富的劇情引人入勝，角色設計獨特，戰鬥系統創新，成為NEO GEO平台上最具代表性的作品之一。不僅延續《餓狼傳說》系列的優秀傳統，還透過引入新的機制和角色，提供更加豐富和刺激的格鬥體驗。

"Garou: Mark of the Wolves," also known as "Fatal Fury: Mark of the Wolves," is a fighting game developed by SNK and released in 1999. It belongs to the "Fatal Fury" series and was initially launched on the NEO GEO arcade platform. The game was later ported to multiple platforms, including Dreamcast, PlayStation 2, Xbox Live Arcade, Steam, PS Network, Switch, PS4, and Xbox One. As the ninth installment in the "Fatal Fury" series, it introduces new characters and gameplay mechanics while retaining the series' classic fighting style.

The game's story is set ten years after the events of the "Fatal Fury" series, in the year 2005. The setting is the fictional Second Southtown, with Rock Howard, the abandoned son of Geese Howard, as the protagonist. After his mother's death, Rock wandered aimlessly until he was adopted and trained in martial arts by Terry Bogard. To uncover the truth about his lineage and affirm his existence, Rock participates in the fighting tournament "King of Fighters: Maximum Mayhem," organized by Kain R. Heinlein.

The game employs traditional 2D fighting game mechanics but introduces many new features to enhance the gameplay experience. These include basic attacks, jumps, blocks, throws, and special skills. Players operate the game using four buttons: light punch (A), heavy punch (C), light kick (B), and heavy kick (D). The power gauge is divided into two types: S Power, which allows super moves to be executed with light attacks, and P Power, which enables EX super moves with heavy attacks once the gauge is filled.

The game also includes the "T.O.P. System" (Tactical Offensive Positioning), allowing players to select a segment of the health bar as the T.O.P. area. When a character's health falls within this area, they receive additional attack power and automatic health recovery.

Another new mechanic is "Just Defend," a blocking system that grants health recovery and extra counterattack time when players block an attack at the last moment. This system encourages precise defensive maneuvers, adding depth and strategy to the game.

The game features fourteen characters, each with unique moves and ultimate skills (super moves) that require specific button combinations to execute. Mastering each character's skills and combos is essential to gaining an advantage in battles.

Players can unlock hidden characters and additional content by meeting specific conditions, such as completing the game under certain criteria. For example, players can unlock hidden characters Kain and Grant, who possess powerful skills and special abilities, adding more challenges and enjoyment to the fights.

Overall, "Garou: Mark of the Wolves" is a classic 2D fighting game acclaimed for its stunning graphics, smooth controls, and deep gameplay mechanics. The compelling storyline, unique character design, and innovative fighting system have made it one of the most iconic titles on the NEO GEO platform. It not only continues the excellent tradition of the "Fatal Fury" series but also offers a richer and more exciting fighting experience through the introduction of new mechanics and characters.