《聖騎士之戰 Petit 2》於2001年9月27日在WonderSwan推出，是《Guilty Gear Petit》的續作，也是《Guilty Gear X》在掌機平台上的第二款延伸作品。這部作品延續前作可愛風格的Chibi（Q 版）角色設計，由岩崎恵美子再次擔任角色美術，使得角色在兇狠的格鬥風格中呈現出獨特反差。相比初代，在角色數量、操作手感、遊戲模式與演出方面都做全面進化，被視為WonderSwan平台上完成度極高的格鬥遊戲之一。

劇情模式加入更多過場動畫，使角色的動機與背景呈現更加鮮明。雖然不像家用機版本那樣具有深度的世界敘事，但仍試圖以簡短但具效果的故事片段，為每位角色的冒險提供合理動因。隨著劇情推進，會遇到原作系列中的角色，如Sol、Ky、Millia等，同時也會面對特定隱藏Boss，例如Testament的亂入戰，大幅提升故事模式的臨場感。

操作方面，最大特色是新增「簡易指令系統」，只需使用簡化的按鍵組合即可施放必殺技。例如原本需輸入「236+A」的招式，可以被簡化為「6+A」，讓新手及在小型掌機上操作的玩家更容易上手。雖然部分高階特殊技會因此無法使用，但系統整體仍成功提升操作手感。此外，也在必殺技、覺醒技與一擊必殺的演出效果上做出大量增強，使每位角色在攻擊時都更有魄力，視覺張力超越一般掌機格鬥遊戲的水準。

角色陣容方面，登場人數達13名以上，為前作的兩倍。除Sol、Ky、May、Millia、Chipp、Zato 等經典人物外，還加入紗夢、喬尼、闇慈等角色，並提供多名隱藏角色，包括Testament以及多位「GG 版本」的角色（例如 GG Sol、GG Ky、GG Millia）。部分角色無法操作，如梅喧、Dizzy 與Venom，雖然不能使用，但會在劇情或背景中客串登場，增加遊戲的細節感與粉絲向彩蛋。

新增的「生存模式」是本作另一亮點。必須面對一連串的敵人，有時還會遇到平時不會出現的特殊配色角色或性能改動的 Boss。若遊戲失敗，Dizzy、Necro與 Undine會根據通關進度給予評價，有時會提供鼓勵，有時給出解鎖隱藏要素的提示，使此模式在挑戰性與趣味性之間取得良好平衡。生存模式的獎勵插畫中還隱藏了 PS2 版《Guilty Gear X Plus》的密碼，使兩款遊戲之間具有跨平台連動功能，這在當時相當罕見，也讓作品內容更加豐富。

舞台也經過強化。不僅保留前作風格，還為場景加入白天與夜晚的配色變化，使同一地點在不同時間呈現截然不同的氛圍。雖然是掌機作品，但美術表現細緻，許多玩家認為其視覺演出水準甚至超越部分家用機早期格鬥作品。

市場評價方面，推出後普遍受到玩家與WonderSwan社群的高度肯定。玩家認為它成功補完前作內容不足的問題，角色數量大幅提升、操作體驗更流暢、故事演出更完整，加上與PS2版本的連動功能，使其內容量遠超一般掌機遊戲。有趣的是，因為它的完成度明顯高於初代，甚至曾有人猜測前作《Guilty Gear Petit》可能因開發時間或商業策略因素而「未完成狀態下被迫推出」，從而讓本作的成熟度顯得更加突出。

整體而言，《聖騎士之戰 Petit 2》是結合可愛風格與高品質格鬥要素的佳作，既保留Guilty Gear系列的熱血格鬥精神，也兼具掌機遊戲應有的輕鬆趣味。它不僅是WonderSwan平台上少數具有深度與粉絲服務內容的作品，更成為許多玩家心中的掌機格鬥名作之一。

Guilty Gear Petit 2, released on September 27, 2001 for the WonderSwan, is the sequel to Guilty Gear Petit and the second handheld adaptation of Guilty Gear X. The game continues the previous title’s adorable chibi-style character design, once again illustrated by Emiko Iwasaki, creating a unique contrast between the cute visuals and the series’ traditionally fierce fighting style. Compared to the first installment, this sequel introduces major improvements in character count, controls, gameplay modes, and overall presentation, earning recognition as one of the most polished fighting games on the WonderSwan platform.

The story mode features more cutscenes, giving each character’s motives and background clearer expression. While it does not match the depth of the home console versions’ narrative world-building, this handheld entry still attempts to provide short but impactful scenes that lend purpose to each character’s journey. As the story progresses, players encounter familiar faces such as Sol, Ky, and Millia, while also facing special hidden bosses—most notably a surprise encounter with Testament—which greatly enhances the sense of immersion within the story mode.

In terms of gameplay, the most notable addition is the Simplified Command System, which allows players to execute special moves using easier input combinations. For example, a move that would normally require “236 + A” can now be performed with just “6 + A,” making the game more accessible to beginners and better suited for handheld controls. Although some advanced techniques become unavailable when using simplified commands, the overall system significantly improves playability. Furthermore, the game enhances the effects and animations of special moves, overdrives, and instant-kill techniques, giving each attack greater impact and visual dynamism, surpassing the typical expectations of a handheld fighting game.

The character roster has been expanded to over 13 fighters—more than double the previous game. In addition to classics like Sol, Ky, May, Millia, Chipp, and Zato, new characters such as Jam, Johnny, and Anji join the lineup. Several hidden characters are also included, such as Testament and multiple “GG versions” of existing characters (e.g., GG Sol, GG Ky, GG Millia). Some characters like Baiken, Dizzy, and Venom are not playable, but they still appear in events or stage backgrounds, adding charm and fan-service elements to the game.

One of the most significant additions is the Survival Mode. Players must face continuous waves of opponents, sometimes encountering uniquely colored or altered boss versions of certain characters. If the player is defeated, Dizzy, Necro, and Undine appear to evaluate their performance—sometimes encouraging them, other times offering hints related to hidden content. This creates an enjoyable balance between challenge and reward. Survival Mode also includes reward illustrations that hide passwords for the PS2 title Guilty Gear X Plus, creating a rare form of cross-platform connectivity at the time and enriching the overall game content.

The stages have also been enhanced. While maintaining the previous game’s aesthetic, this installment introduces day and night variations for certain stages, offering different atmospheres within the same location. Despite being a handheld title, the game’s graphical detail is quite refined, and many players feel its visual presentation even surpasses some early home-console fighting games.

In terms of reception, Guilty Gear Petit 2 has been highly praised by players and the WonderSwan community. Fans appreciate how it addresses shortcomings of the first game, offering more characters, better controls, more complete story presentation, and added connectivity with the PS2 version. Interestingly, because of its significantly higher level of polish, some players have speculated that the original Guilty Gear Petit may have been released in an unfinished state due to development or business constraints—an idea reinforced by how fully realized this sequel feels.

Overall, Guilty Gear Petit 2 combines charming visual style with high-quality fighting mechanics, retaining the intense spirit of the Guilty Gear series while offering the quick and enjoyable experience suited to handheld play. It stands as one of the few WonderSwan titles with notable depth and rich fan-service details, and remains a beloved handheld fighting game among fans.