Rerolling is one of the most important steps you can take in Kaiju No. 8: The Game if you want a strong start. With powerful bosses and mechanics built around resistances, securing the right characters early will make progression smoother. Here’s the full breakdown of who to target, which gacha to pull from, and when to stop rerolling.
Kaiju No. 8 Reroll Guide – Best Characters to Start With
Reroll Quick Reference
Tier 1: Reno Ichikawa, Kaiju No. 8 (Kafka), Gen Narumi
Tier 2: Mina Ashiro, Isao Shinomiya
Tier 3: Kikoru Shinomiya, Soshiro Hoshina, Rin Shinonome
Top Priority: Reno Ichikawa – Limited, high versatility, freeze utility, and SP restore
Best Characters to Reroll For
Tier 1 – Must-Haves
Reno Ichikawa (Weapon Six Suit)
Exclusive to his own limited banner
Inflicts Freeze, restores SP, and has top-tier striker performance
Cannot be obtained from the standard gacha, making him the most valuable reroll target
Kaiju No. 8 (Kafka Hibino)
One of the few units with consistent Hit Resistance Break on both skills
Crucial for breaking boss “plates” and preventing their power-ups
Gen Narumi
Unique dual-attribute breaker (Slash & Shooting Resistance)
Provides excellent coverage in boss fights, essentially a “two-for-one” unit
Tier 2 – Strong Alternatives
Mina Ashiro
Reliable Shooting Resistance Breaker and consistent damage output
Great if paired with Narumi or Kafka
Isao Shinomiya
The only 5★ Defender available at launch
Valuable for tanking since there are only three defenders in the entire roster (including 4★s)
Tier 3 – Solid But Lower Priority
Kikoru Shinomiya – Decent early-game damage but overshadowed by stronger breakers
Soshiro Hoshina – Has situational utility but only applies resistance breaks with limited skills
Rin Shinonome – More niche and harder to fit in optimal reroll setups
Best Banner to Reroll On
Use THE GAME Gacha Tickets First
All players start with 20 tickets from pre-registration
These tickets can only be used on the standard THE GAME Gacha, where Kaiju No. 8 and Narumi are available
Limited Reno Banner
Reno cannot be pulled from the standard gacha
Requires Dimensional Crystals instead of tickets
Harder to reroll due to fewer pulls, but absolutely worth it if you’re committed
Should You Reroll?
Yes—rerolling gives you a massive head start.
Most 5★s are Strikers, so getting one of the top-tier units (Kafka, Narumi, or Reno) accelerates story progression significantly.
With bosses demanding specific resistance breaks, starting with the right coverage saves you from hitting early walls.
If you pull Reno + Kafka or Kafka + Narumi within your opening rerolls, you should strongly consider keeping that account.
When to Stop Rerolling
Ideal Outcome: Reno Ichikawa + one of Kafka or Narumi
Good Outcome: Kafka + Narumi (using your free selector for whichever you miss)
Safe Outcome: Any top-tier striker (Kafka or Narumi) + Mina as backup
Once you secure one of these combinations, stop rerolling and start investing resources into building your core team.
Reno Ichikawa is the dream reroll target thanks to his limited availability and Freeze/SP support.
Kafka provides essential Hit Resistance coverage for bosses.
Narumi is unmatched for multi-plate breaking and long-term utility.
Mina and Isao make strong backups if you’re unlucky.
If you’re short on time, reroll until you land Kafka or Narumi, then use your free 5★ selector to fill the gap. If you have patience, go for Reno + Kafka/Narumi for the strongest possible start.