KAYAC has confirmed that the next major content wave for its one-on-one fighting game Ketsu Battler is nearly here. The Series 2 update drops on July 30, and it's bringing a brand-new DLC character named Kiden along for the ride. If you're into quirky Nintendo Switch fighters, this is the date to circle.
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What Ketsu Battler looked like before Series 2
Ketsu Battler launched on Nintendo Switch in Japan as a decidedly niche but committed take on one-on-one fighting. The core hook is exactly what it sounds like: butt-based combat, delivered with the kind of unhinged energy that only a Japanese indie studio could pull off with a straight face. The base game established the roster and mechanics, but like most modern fighting games, the real longevity lives in post-launch support.
Series 1 set the foundation. Series 2 is where KAYAC signals whether this game has legs (or, well, glutes) beyond its initial novelty.
What Series 2 is actually bringing
Here's the thing: full details on the Series 2 content are still being held back. KAYAC is saving the bigger reveal for the August issue of CoroCoro Comic, which hits on July 15. That means there's a two-week window between the info drop and the actual release date, which is a tight but workable rollout.
What's confirmed right now is Kiden as a paid DLC character launching simultaneously with the update on July 30. The announcement trailer is live, and it's your first real look at what Kiden brings to the roster.
Series 2 vs. the base game: what the update model tells us
For a game this niche, committing to a numbered series update structure is a meaningful signal. Most small-scale fighting games either fade quietly or get one patch and call it done. KAYAC naming this Series 2 implies a deliberate content roadmap, not just a one-off DLC drop.
Kiden as a paid character also follows the standard modern fighting game playbook: keep the base roster accessible, monetize additional fighters. The key here is whether Series 2 adds meaningful system-level changes alongside Kiden, or whether it's primarily a character release with some balance adjustments tucked in. CoroCoro's July 15 reveal should answer that.
Ketsu Battler is currently a Japan-exclusive Switch title, so Western players are watching for any regional expansion news as part of this update cycle. Nothing confirmed on that front yet.
The July 30 launch date is set. For everything the Series 2 update covers beyond Kiden, keep an eye on the CoroCoro Comic reveal on July 15. If you want to brush up on how DLC fighters typically shake out in the genre, the gaming guides section has you covered on fighting game fundamentals worth knowing before a new character drops.
