KAIJU NO. 8 THE GAME, the official adaptation of the hit manga and anime, launched in late August 2025. As a turn-based RPG with strategic team building, choosing the right characters is essential for clearing stages and defeating Kaiju efficiently. This guide presents the best character tier list, highlighting which heroes stand out in SS, S, and A tiers based on performance, versatility, and team value.

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  1. KAIJU NO. 8 THE GAME – Top Team Builds and Squad Guide
  2. KAIJU NO. 8 THE GAME Redeem Codes (September 2025)
  3. KAIJU NO. 8 THE GAME Reroll Guide – How to Reroll for the Best Characters

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Best Character Tier List Overview

The tier list for KAIJU NO. 8 THE GAME highlights a mix of heavy-hitting damage dealers, versatile supporters, and reliable defenders. At the very top, SS-Tier heroes like Reno Ichikawa, Kaiju No. 8, and Gen Narumi define the current meta with unmatched power. S-Tier characters such as Mina Ashiro, Kikoru Shinomiya, and Soshiro Hoshina bring strong buffs and team synergy, while A-Tier picks like Rin Shinonome and Akari Minase remain excellent in specific scenarios.

Characters are ranked primarily by their damage output, flexibility in different teams, and how well they perform without requiring heavy investment. Below is a breakdown of the most effective characters currently available.

SS Tier – The Strongest Characters

The SS Tier is reserved for the absolute best units in Kaiju No. 8 The Game. These characters dominate any battle thanks to their unmatched damage potential, utility, and ability to carry entire squads on their own. They are must-haves for players who want to clear difficult content with ease.

  • Reno Ichikawa – Excels as a top damage dealer. His Ice Crystal effect continues dealing damage even outside his turn while also offering Freeze and SP recovery.
  • Kaiju No. 8 – A powerhouse capable of stacking self-buffs and instantly finishing off weakened small Kaiju, making stage clears much faster.
  • Gen Narumi – Brings dual-attribute strength with both Slash and Ranged attacks. He shines in both mob and boss encounters and can reliably expose enemy cores.

S Tier – Highly Reliable Choices

S-Tier characters are just a step below the absolute top, but they remain incredibly strong and versatile. These units shine in many situations, often providing key buffs, debuffs, or defensive tools that elevate an entire team. They may not always out-damage SS-tier heroes, but they are essential for balanced squad compositions.

  • Kikoru Shinomiya – Offers stacking attack and critical damage buffs and can weaken enemy defenses with her Ultimate.
  • Mina Ashiro – Deals guaranteed critical hits at set intervals, is highly effective against large Kaiju, and provides damage reduction with her Ultimate.
  • Soshiro Hoshina – Specializes in critical rate boosts and enhanced damage versus small Kaiju, proving especially useful in boss fights.
  • Isao Shinomiya – A rare 5-star defender who shields allies while boosting overall squad damage.

A Tier – Solid and Situational Picks

A-Tier characters may not reach the raw power of higher-ranked heroes, but they remain reliable in the right situations. Many of these units provide valuable support skills, AoE damage, or passive buffs that can make a big difference when paired with top-tier characters. They are especially useful for players still building up their roster.

  • Rin Shinonome – AoE attacker who grows stronger against multiple enemies and can recharge her Ultimate by defeating foes.
  • Akari Minase – Supports the squad with healing and speeds up Ultimate gauge recovery, particularly when allies are low on health.
  • Ryo Ikaruga – Provides attack and speed buffs to the team passively and becomes far stronger after ascension upgrades.
  • Mina Ashiro – While placed higher in S Tier, she can also fill supportive roles when not used as the main DPS.
  • Soshiro Hoshina – Similar to Mina, he can flex between offense and supportive roles depending on team composition.

B Tier – Niche but Usable Characters

B-Tier units are functional but less impactful compared to higher-ranked heroes. They can still contribute when players lack stronger options, or in specific strategies.

  • Kafka Hibino – Brings solid damage but lacks the overwhelming impact of SS or S Tier characters.
  • Kikoru Shinomiya (alt version) – Offers some utility but doesn't reach the consistency of her higher-ranked counterpart.
  • Reno Ichikawa (alt version) – A useful early-game attacker, though easily outclassed by his top-tier form.
  • Haruu Furukawa – Balanced fighter who can handle smaller encounters but falls short in boss fights.
  • Tets Makinoshima – Provides frontline strength but lacks the utility of higher-ranked defenders.

C Tier – Limited Impact Characters

C-Tier characters struggle to keep up with the pace of higher-tier units. They are generally best used until stronger heroes are unlocked or for specific roster-filling roles.

  • Haruchi Izumo – Offers basic damage but little else to support the team.
  • Aoi Kaguragi – Functions as a situational pick with limited versatility.
  • Eiji Hasegawa – Solid defense but low damage contribution makes him hard to fit into top squads.
  • Keiji Rumi – His kit is too narrow to justify over stronger alternatives.
  • Kota Tachibana – Lacks both damage and utility, making him one of the weakest roster options.

Tier List Criteria

When ranking characters in Kaiju No. 8 The Game, it's not just about raw stats—what truly matters is how they perform across different battles and how much value they bring to a squad. The following criteria were used to evaluate and separate each tier:

  1. Damage Output – The most decisive factor for ranking, since strong DPS shortens battles and helps clear difficult stages faster.
  2. Versatility – Characters that adapt well to multiple team strategies or different types of encounters are ranked higher.
  3. Accessibility – Heroes who provide strong utility or power even at lower ascension levels gain extra value, as they remain effective without heavy investment.

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Conclusion

The current best characters in KAIJU NO. 8 THE GAME are led by Reno Ichikawa, Kaiju No. 8, and Gen Narumi, who dominate the SS Tier with unmatched strength. S-Tier characters like Mina Ashiro, Kikoru Shinomiya, and Soshiro Hoshina provide valuable synergy, while A-Tier picks offer supportive or situational strengths. By understanding these rankings and criteria, players can build the most effective squads to overcome Kaiju challenges.