How to get Thunder Breathing in Slayers 2
Thunder is taught by Zentaro, who stands on the highest peak above Hidden Mist Village. Getting there is a climb, so the skill tree matters as much as the price. Then the v.09 patch slowed the style down, and a later patch gave part of it back. Both halves are below.

A hilltop at night. The nameplate over the NPC on the left reads Thunder Trainer Zentaro.
Before you set off
- Level 25. Every trainer asks for it; the leveling guide covers the first stretch.
- 10 Demon Horns. No Beast Cores or Wen on top. The Demon Horns page shows where to farm them.
- Wall Climb and Double Jump from the skill tree. The last stretch is a cliff face you scale in short hops. Without Wall Climb you reportedly cannot reach him at all; it costs 6 points after Double Jump in the skill tree.
The route up
Set off from the starting village and follow these steps.
- Head out towards the bear area. On the way through, Mother Bear’s health bar comes up; she parries automatically, so don’t stop to fight her.
- You pass Obari, the Serpent boss, standing in the open. Keep going. (If you are after Serpent Breathing instead, its trainer shares his name.)
- The area label switches to Wilderness. Follow the path uphill.
- The climb starts. Stop at the foot to refill your stamina, then chain double jump into climb up each face.
- Get onto the tree trunk and follow it across. Just don’t drop off the side.
- A few more double jumps and Zentaro is on the summit.

Against a cliff face, with the prompt Wall over Stop Climbing.
After you pay him
Handing over the horns starts a training quest, not the style itself. The tasks differ by style, some with parkour and some with push ups, and you unlock the breathing once you beat the trainee at the end. The training quest page lists Thunder’s five minigames in order; Stone’s tracker, for comparison, sits on the breathing styles overview.
A mini boss named Thunder Trainee stands near the Stone trainer in Hidden Mist. After a kill its sign reads Spawns in 1:55, and its bar lists no item drops at all. Going by the name, Thunder training most likely ends with it.
One thing to know if you farm it: Muzan’s task list offers demons of level 45 and up a hunt called Eliminate Thunder Trainee.

Mini Boss Thunder Trainee, 600 / 600, Common Chest. The only lines under the bar are Exp +185 and Wen +83: no item drops.
The Thunder nerf, move by move
The v.09 patch note reads Nerfed thunder a bit, next to Buffed Water Breathing, with no detail. In practice nearly every move got slower, as the table shows. A partial rebuff followed in V0.110, and Thunder still plays that way in the V0.145 build.
| Move | At launch | After v.09 | After the V0.110 rebuff |
|---|---|---|---|
| Thunderclap and Flash | Released instantly | Now waits before it fires | Faster cast and a longer stun at the end |
| Lightning Fold | Released instantly | Now waits before it fires | – |
| Rice Spirit | Released instantly | Now waits before it fires | Faster cast and a longer finishing stun, but no strict stun any more |
| Godspeed | A burst of speed | You move no faster than running | Still slower than at launch |
| Flaming Thunder God (the ultimate) | – | No added delay | – |
- The new wind-up is about a second on every move, and Z, X, C and V were all hit.
- The patch note calls the change a bit. Straight after it, Thunder was called the worst breathing in the game.
- Several Thunder finishers still push enemies less far than they did at launch.

It lists Fixed and buffed tamari, Buffed Water Breathing, Buffed Arrow, Increased all boss skill drop rates by 5%, Nerfed thunder a bit, Fixed more bugs and Removed all spikes in parkour dungeon for mobile and console.
THUNDER IS NOW THE WORST BREATHING IN PROJECT SLAYERS 2...
Every Thunder move tested right after the v.09 nerf, so you can see the new wind-up on each.
Zentaro the boss, and the ultimate
The same name belongs to a world boss, The Thunder King (Zenitsu in the anime), who stands right next to Hidden Mist. Beating him does not teach you Thunder; paying the trainer does. What the boss gives is Thunder’s ultimate as a scroll, Flaming Thunder God, at 5% at launch. The v.09 patch raised every boss skill drop by 5%, so it is higher now.
The scroll line is struck through for anyone who can’t use it: Must be Slayer for non-Slayers, and Missing plus the style name for Slayers who use a different style. Plan on learning Thunder first. The same bar also lists the Thunder Haori at 3% and the Thunder Katana at 5%.
How many kills a 5% katana takes is a question for the drop calculator on the bosses page.

The Thunder King Zentaro: the health bar, and under it every drop with its chance.
Where tier lists put Thunder now
All three lists came out after the v.09 nerf, and one has since been updated for V0.182, after the V0.110 rebuff; it still puts Thunder in A. The S rating rests on Thunder’s instant-cast moves, the very thing the nerf took away, so check which version a list describes before you trust it. The tier list comparison sets all eight styles side by side.
- ABeebom
- SDestructoid
- APro Game Guides
The developer’s own preview
Ouw Productions posted a Thunder showcase before release. It shows the moves as they were designed, which makes it a useful before picture for the nerf, but it predates both patches.
Roblox Slayers 2 | Thunder Breathing Showcase
Thunder at full speed, before the nerf slowed it down.