The Greed Island arc of Hunter x Hunter stands as one of anime and manga’s most inventive narrative experiments—a “game within a story” that forces its characters to confront both external challenges and their own deepest insecurities. At its heart lies a network of alliances and rivalries that not only drive the plot forward but also lay bare the psychological complexities of Yoshihiro Togashi’s world. From the unbreakable bond between Gon Freecss and Killua Zoldyck to the tense standoffs with the serial bomber, every relationship reflects the arc’s core theme: survival is rarely a solo endeavor. In this exploration, we dissect the intricate web connecting the Greed Island crew and the antagonists who push them to their limits.

The World of Greed Island as a Crucible for Alliances

Greed Island is not a typical virtual world. Created by the legendary Nen user Ging Freecss and his companions, the game is a real, isolated island brought to life through immense aura and a set of 100 restricted cards. Players enter physically, and death inside the game is permanent. This high-stakes environment transforms every interaction into a potential alliance or a lethal rivalry. The game’s structure—requiring players to collect cards by completing quests, defeating monsters, and outwitting competitors—naturally encourages temporary partnerships. Yet it also rewards betrayal, since stealing rare cards from other players is often easier than earning them honestly. The Greed Island crew, centered on Gon, Killua, and their mentors, navigates this treacherous landscape by leaning heavily on trust and shared purpose, a stark contrast to the opportunistic behavior of rivals like the Bomber.

Understanding the mechanics of Nen is essential to grasping why alliances matter here. The game’s challenges are designed for advanced Nen practitioners; without sufficient mastery, players are quickly eliminated. This premise forces the core group to invest time in training and mutual growth, a process that cements their bonds while simultaneously exposing the fault lines that later give rise to rivalry. For a deeper dive into the Nen system itself, you can visit the official Viz Media Hunter x Hunter page, which offers a glossary of terms that enrich the reading experience.

The Core Crew: Unpacking Their Roles and Motives

Before analyzing the specific alliances and rivalries, it is worth profiling the key members of the Greed Island crew. Each character enters the game with a distinct personal goal, and these objectives shape whom they ally with and against whom they compete.

Gon Freecss — The Determined Seeker

Gon’s primary motivation is to find his father, Ging, and Greed Island is the trail leading to him. His approach to alliances is disarmingly simple: he extends trust openly and expects the same in return. This purity of intent is both his greatest strength and his most glaring vulnerability. In the game, Gon’s unwavering moral code makes him a reliable ally but also a target for those who see his straightforwardness as naivety. His alliance with Killua is the anchor that keeps him grounded when his recklessness threatens to derail their progress.

Killua Zoldyck — The Prodigy Struggling for Autonomy

Killua enters Greed Island not for a treasure but for a chance to escape his family’s suffocating influence. His rivalry with his brother Illumi and the entire Zoldyck legacy operates in the background of almost every decision he makes. As an ally, Killua is the strategic counterweight to Gon’s impulsive nature. His pragmatic mind often saves the group from lethal traps, yet his inner conflict—wrestling with the literal needle Illumi planted in his brain—creates moments of self-doubt that his allies must help him overcome. The bond he shares with Gon becomes the vehicle for his emancipation.

Biscuit Krueger — The Deceptive Mentor

Biscuit, or Bisky, appears at first as a cheerful young girl, but she is in fact a veteran Nen master and a former pupil of the game’s creators. Her alliance with Gon and Killua is first transactional—she wants the rare Blue Planet gem—but quickly evolves into genuine mentorship. Bisky’s value lies not only in her combat prowess but in her ability to design rigorous training programs that transform the boys’ Nen abilities. She represents the alliance of student and teacher, a relationship built on tough love and unwavering standards. Her presence elevates the entire crew’s potential and subtly rebalances the internal rivalries by giving Killua the confidence to resist his family.

Kurapika and Leorio — Distant but Integral Allies

Although Kurapika and Leorio are not physically present on Greed Island throughout the arc—Kurapika hires a specialist to use the game’s cards for his own ends, and Leorio participates via communication channels—their influence is felt heavily. Their earlier alliance with Gon and Killua during the Hunter Exam and Yorknew City arcs established a foundation of trust that allows the group to share information and resources across distance. Kurapika’s relentless hunt for the Scarlet Eyes aligns with the crew’s need for rare cards, while Leorio’s medical ambitions remind the group of life beyond the game. Their contributions, though indirect, reinforce the idea that true alliances can endure physical separation.

The Fabric of Alliances: Trust, Training, and Shared Victory

The Greed Island arc offers a masterclass in how alliances form and evolve under pressure. Unlike the high-octane gang warfare of the Yorknew City arc, here the threats are often systemic—the game itself, with its vicious monsters and bewildering card rules, is as much an antagonist as any individual. This environment forces the crew to develop alliances that are functional, emotional, and strategic.

Gon and Killua: A Symbiosis of Idealism and Calculation

The cornerstone of the Greed Island crew is the bond between Gon and Killua. Their alliance is not built on formal agreements but on an almost instinctive mutual understanding. In combat, their fighting styles complement each other flawlessly: Gon’s Jajanken provides raw, devastating power, while Killua’s Godspeed and assassination techniques offer speed, precision, and control. When a challenge requires brute force, Gon leads; when it demands stealth or tactical withdrawal, Killua takes over. This balance allows them to tackle missions that would overwhelm either of them alone, such as the final showdown against the Bomber.

But the alliance goes deeper than technique. Greed Island forces both boys to confront their psychological weaknesses. Gon’s black-and-white morality risks drawing the group into unnecessary danger, and Killua’s lingering submission to Illumi threatens to sabotage them at critical moments. Each serves as the other’s emotional anchor; Gon’s faith in Killua’s goodness encourages Killua to remove Illumi’s needle voluntarily, while Killua’s candid assessments prevent Gon from making suicidal choices. Their alliance is a powerful illustration of how friendship, when translated into tactical cooperation, becomes a force multiplier.

Biscuit’s Mentorship: Forging Strength Through Discipline

When Biscuit joins the team, she immediately upends the existing dynamic by instituting a brutal training regimen. This period of enforced alliance—where Gon and Killua must endure her exercises to advance in the game—reshapes their abilities and their relationship with hardship. Bisky’s methods are not gentle; she pits the boys against monstrous rock creatures and forces them to refine their Ren and Ken until the defenses become second nature. Her alliance with them is that of a strict coach who cares deeply about her pupils’ ultimate potential. She reveals that growth is not always comfortable, and a true ally must sometimes say “no” for the sake of long-term survival.

Biscuit’s own goals align with the team’s: by helping Gon and Killua collect the necessary cards, she inches closer to the Blue Planet gem. Yet over time, her investment in their development becomes personal. She shares stories of Ging and the game’s origins, becoming a bridge between the present adventure and the legacy Gon is chasing. This mentor-student alliance enriches the crew’s collective knowledge and ensures they are not merely surviving Greed Island but mastering it.

Extended Alliances: Card Synergies and Mutual Aid

Beyond the inner circle, the Greed Island crew forges temporary alliances with other players. These arrangements are often transactional—trading cards, sharing information about monster spawns, or teaming up for challenging quests. For example, the alliance with the player nicknamed “Nickes” provides critical intel, while the shaky truce with the Bomber’s victims later in the arc transforms into a coordinated strike force. The arc emphasizes that in a game designed to reward both cooperation and betrayal, choosing the right allies is as important as honing your Nen. The crew’s judgment in these fleeting partnerships underscores their growth from naive adventurers to seasoned strategists.

Rivalries That Redefine the Stakes

If alliances are the glue that holds the crew together, rivalries are the fire that tempers them. Greed Island introduces several antagonistic forces that pit the group’s values against brutal pragmatism.

Gon vs. The Bomber — Idealism Confronts Calculated Evil

The most immediate rivalry in the arc is between Gon and Genthru, known as the Bomber. Genthru and his two subordinates operate as a parasitic alliance within the game, using a Nen ability called “Little Flower” and deceptive “Countdown” bombs to extort rare cards from other players. Genthru embodies everything Gon despises: he exploits trust, manipulates good intentions, and kills without remorse. When Genthru’s alliance ambushes the player community that Gon has befriended, the conflict becomes personal.

This rivalry is a classic clash between collective cooperation and ruthless individualism. Gon’s strategy to beat the Bomber involves a carefully coordinated counter-ambush that relies on every alliance the crew has cultivated—Killua’s recon, Bisky’s training, and the willingness of previously victimized players to risk their lives. The final fight against Genthru is not just a physical battle; it is a referendum on two opposing philosophies of game-play and, by extension, life. Gon’s victory, achieved at great personal cost, reaffirms the arc’s message that genuine alliances outlast predatory rivalries. For viewers revisiting this iconic clash, the episodes are available for streaming on Crunchyroll.

Killua vs. The Zoldyck Legacy — The Rivalry Within

While Gon faces external enemies, Killua’s most profound rivalry is internal. The influence of his brother Illumi manifests as a literal needle inside his skull, placed to make him flee from opponents stronger than himself. This implant turns every major threat into a psychological crisis; Killua must wrestle with an ingrained flight response that undermines his ability to protect his friends. The rivalry between Killua and Illumi is a battle for ownership of Killua’s own mind. It reaches a turning point in Greed Island when Killua, inspired by Gon’s unwavering trust and Bisky’s frankness, finds the courage to remove the needle.

This internal victory transforms Killua from a prodigy haunted by fear into a true hunter who can act on his own volition. The ripple effects are immediate: his Godspeed ability becomes fully unrestrained, and his tactical decisions gain a new boldness. The rivalry with Illumi does not end here, but Greed Island marks the moment Killua begins to define himself apart from his family’s shadow—a direct result of the supportive alliance around him.

The Phantom Troupe’s Shadow and Hisoka’s Provocations

Rivalries in Greed Island are not limited to the main cast. The Phantom Troupe, still reeling from the events of Yorknew City, enters the game seeking a Nen exorcist to remove the chain Kurapika placed on their leader, Chrollo. Their presence introduces a layer of menace: though they do not directly clash with Gon’s crew, the Troupe’s ruthless efficiency reminds the audience of the wider, more dangerous world of Nen. Knowing that former enemies are competing for similar resources adds an undercurrent of tension to every alliance the crew forms. The possibility of a confrontation forces Gon and Killua to tread carefully, refining their ability to assess threats.

Hisoka, the magician with a predatory fascination for strong opponents, also skulks at the edges of the arc. His alliance with the Phantom Troupe has crumbled, and he uses Greed Island as a hunting ground to find the exorcist for his own ends. Hisoka’s fleeting interactions with the crew are laced with unspoken rivalry; he views Gon and Killua as “fruit to be ripened.” This unsettling dynamic reinforces the theme that even within a game, the line between ally and enemy can blur at any moment. For a detailed character analysis of Hisoka and his shifting allegiances, the Hunterpedia Hisoka page offers extensive background.

How Greed Island Reconfigures the Concept of Alliance

What sets Greed Island apart from other arcs is its game-theory framing. The mechanics of the 100 restricted cards create a structured system where alliances can be quantified through card trades and joint quests. A player who hoards cards and refuses to cooperate soon hits a wall because the game’s design actively encourages resource pooling. The crew’s decision to assemble a clearinghouse of players to exchange duplicates and fill empty slots in their card binders is a direct adaptation to these rules. This system-driven approach to alliance-building is a marked shift from the emotional loyalties of earlier arcs, blending sentiment with strategic calculation.

At the same time, the game’s “Accompany” and “Magnetic Force” cards enable rapid travel and rescue, making it possible for allies to reinforce each other at critical moments. These logistics make trust a currency: a dependable ally is literally a lifeline. The Bomber’s rivalry, by contrast, is a parasitic strategy that exploits trust rather than building it. His defeat is not just a moral victory but a validation of systemic cooperation over exploitative trickery. Togashi uses this framework to suggest that in any complex system—be it a game, a society, or a hunter’s career—sustainable progress relies on alliances that respect mutual benefit and personal growth.

The Evolution of the Crew Beyond Greed Island

The alliances forged and tested on Greed Island have lasting consequences for the entire series. Gon and Killua’s bond, purified by the removal of Illumi’s needle and the joint victory over the Bomber, becomes the emotional bedrock for the Chimera Ant arc that follows. The rigorous training under Biscuit elevates their Nen proficiency to a level that allows them to survive encounters with Royal Guards. Moreover, the crew’s experience with large-scale cooperation provides a blueprint for the later Hunter Association election and the Dark Continent expedition, where coalitions become a necessary survival mechanism.

Kurapika and Leorio’s parallel storylines, meanwhile, remind us that alliances need not be physically proximate to be effective. The trust they established during the Hunter Exam and reinforced through Greed Island communications continues to unify the protagonist group across continents and crises. This thematic continuity underscores one of Hunter x Hunter’s central insights: true alliances are not static agreements but evolving relationships that adapt, strengthen, and sometimes fray under pressure.

Conclusion: The Enduring Legacy of Greed Island’s Social Web

The Greed Island arc stands as a remarkable study of human connection under stress. By placing its characters inside a literal game whose rules reward cooperation yet tempt betrayal, Togashi creates a microcosm of society itself. The alliances—between Gon and Killua, with Biscuit as mentor, and among the wider player community—demonstrate that collective resilience often outmatches individual aggression. The rivalries with the Bomber and with the Zoldyck family expose the vulnerabilities that make those alliances necessary in the first place.

For fans exploring the arc in the manga volumes or the 2011 anime adaptation on Crunchyroll, Greed Island offers not just thrilling action but a layered commentary on trust, autonomy, and growth. It reminds us that the strongest crews are those where members push each other to overcome internal demons as much as external foes. As the story moves into its darker chapters, the lessons learned in Greed Island—the value of a steadfast partner, the danger of unchecked ambition, and the power of disciplined mentorship—remain ever relevant.