Fighting bosses in Kaizen is important for progression. They’ll give you lots of XP and Mastery, but they also drop certain accessories and items that will help you get stronger. So, we’ve put together this list of all Kaizen Boss drops, locations, and more that you can use to find all bosses and decide which ones you want to grind.
All Bosses in Kaizen - Drops, Locations, & Respawn Times
Two different types of bosses spawn in Kaizen: Story Bosses and World Bosses. Story Bosses are easier to find because they have a set spawn location, and the quest indicator will lead you to them. World Bosses, on the other hand, spawn in different locations on the map and have set respawn times.
All Story Bosses in Kaizen
| Boss | Drops | Spawn Location |
|---|---|---|
| Cathy | XP Mastery XP Boss Chest Furr Coat [Accessory] - 30% Chance | Jujutsu High Headquarters |
| Raiken | XP Mastery XP Boss Chest Brace Knuckles [Accessory] - 70% Chance | School Track & Field |
| Grasshopper | XP Mastery XP Boss Chest Grasshopper Wings [Accessory] - 10% Chance Grasshopper Core [Materials] - 42.5% Chance | Lotusgrave Swamps |
| Shroom Chief | XP Mastery XP Boss Chest Shroom Chief Core [Material] - 45% Chance Mushroom Gauntlets [Accessory] - 10% Chance | Mizuka Outskirts |
| Lizard | XP Mastery XP Boss Chest Lizard Core [Material] - 25% Chance Lizard Furr Coat [Accessory] - 10% Chance | Mizuka Outskirts |
| Cyclops | XP Mastery XP Boss Chest Cyclops Core [Material] - 25% Chance Eye Pendant [Accessory] - 8% Chance | Mizuka Mines |
| Frog King | XP Mastery XP Boss Chest Frog King Core [Material] - 35% Chance Frog King Crown [Material] - 3.1% Chance Frog Crown [Accessory] - 9.2% Chance | Lotusgrave Cavern |
| Cave Mole | XP Mastery XP Boss Chest Cave Mole Core [Material] - 45% Chance | Cursed Caverns |
| Frostbound Titan | XP Mastery XP Boss Chest Frostbound Titan Core [Material] - 45% Chance Frost Pauldron [Accessory] - 10% Chance | Frozen Peak |
| Toxic Waste Curse | XP Mastery XP Boss Chest Toxic Waste Core [Material] - 45% Chance Jaw Mask [Accessory] - 8.4% Chance | Toxic Waste Room |
| Finger Bearer | XP Mastery XP Boss Chest Finger Bearer Core [Material] - 20% Chance Cursed Finger #1 [Material] - 2.6% Chance Red Claws [Accessory] - 6.2% Chance | The Bearer’s Hollow |
| Grin Curse | XP Mastery XP Boss Chest Prayer's Beads [Accessory] - 5.3% Chance | Shibuya |
| Ironclad Gnasher | 149,700 XP Mastery XP Boss Chest Ironclad Gnasher Core[ Material] - 45% Chance Ironclad Gauntlet [Accessory] - 4.5% Chance | Shibuya |
All Story Bosses will respawn within 1 to 5 minutes of defeat. Bosses with the rarest drops, like Grasshopper and Finger Bearer, will take longer (up to 5 minutes) to spawn than the easier bosses like Cathy (respawns almost instantly).
All World Bosses in Kaizen
| Boss | Drops | Spawn Location |
|---|---|---|
| Uraume | XP Mastery XP Boss Chest Frost Fangs [Weapon] Uraume Core [Material] | Frozen Peak |
| Eso | XP Mastery XP Boss Chest Blood Scythe [Weapon] Eso Core [Material] | Jujutsu Headquarters |
| Gojo | XP Mastery XP Boss Chest Binding Vow Spins Six Eyes Essence [Material] Gojo Headband [Accessory] | Horobi Village |
| Sukuna | XP Mastery XP Boss Chest Binding Vow Spins Cursed Finger #3 [Material] Malevolent Flame Pauldron [Accessory] | Shibuya |
| Itadori | XP Mastery XP Boss Chest Binding Vow Spins Black Flash Essence [Material] Demon Arms [Accessory] | Trial of Absolute Focus |
World Bosses will respawn 10 minutes after defeat. However, bosses like Itadori and Eso have very low spawn chance, and you might have to hop a few servers to find these.
Kaizen FAQs
Binding Vow Spins are obtainable via Robux or as a drop from certain World Bosses like Itadori, Sukuna, and Gojo.
Core materials drop from both Story Bosses and World Bosses in Kaizen. World Bosses drop higher-rarity cores but have very low drop chances. Story Bosses, on the other hand, will drop low-rarity core materials with high drop rates.
For every World Boss, you must deal damage equal to 15% of the boss’s max HP to get the rewards. If you do less damage than that, you won’t get any reward even if your team defeats the boss.
You should also redeem the latest Roblox Kaizen Codes and check out our detailed guide on Binding Vows in Kaizen that lists all buffs/debuffs and shows how to fuse Binding Vows to get higher-tier ones.
Shah is a Roblox specialist with years of experience covering the platform’s biggest games, updates, and code drops for top-tier gaming sites. Formerly an accountant, he now applies the same precision to analyzing mechanics, meta shifts, and game trends across the Roblox universe. He’s especially known for breaking down Blox Fruits treasure hunts and mastering the grind in Grow a Garden.