Grand Kaizen currently has 2 active codes in September 2025 that provide free technique rerolls and spins to help you become a powerful Jujutsu Sorcerer or High-Grade Curse in this popular Roblox fighting experience. The latest code "Update1Soon!" grants 30 technique rerolls, while "30kLikes!" provides 15 spins for desktop players only.
| Active Codes | Rewards | Platform | Status |
|---|---|---|---|
| Update1Soon! | 30 Technique Rerolls | PC & Mobile | ✅ Working |
| 30kLikes! | 15 Spins | PC Only | ✅ Working |
Jump into the world of Grand Kaizen and redeem these codes immediately to unlock powerful cursed techniques, reroll your abilities, and accelerate your progression through this anime-inspired Roblox adventure. Remember that you must reach level 5 before redeeming any codes, which typically takes about an hour of grinding through starter quests.
Contents
Understanding which codes have expired helps you avoid wasting time on outdated lists. Here are all the codes that no longer work as of September 2025:
| Expired Code | Previous Reward | Expiration Period |
|---|---|---|
| HappyNewYear | 25 Spins + 2x XP Drop Rate | January 2025 |
| MobileFixes | 5 Spins | Early 2025 |
| 20kLikes! | 15 Spins | Mid-2025 |
| 15kLikes! | 15 Spins | Early 2025 |
| BugFixes2 | 5 Spins | Late 2024 |
| ReRelease | 25 Technique Rerolls | Late 2024 |
| BugFixes | 10 Technique Rerolls | Late 2024 |
Redeeming codes on PC offers the most reliable experience with fewer bugs and access to all available codes:
Mobile redemption uses a unique chat-based system that can be temperamental but still works for most codes:
!redeem CodeHere (replace CodeHere with actual code)
!redeem Update1Soon!Important Mobile Notes:
The most common issue players face is attempting to redeem codes before reaching level 5. This restriction prevents brand new accounts from farming rewards. Spend your first hour completing the tutorial quests and grinding the starter NPCs near spawn to quickly hit level 5.
Grand Kaizen's code system has acknowledged bugs that occasionally prevent valid codes from working. If you encounter an error message despite entering a correct code:
Codes in Grand Kaizen are extremely case-sensitive. "Update1Soon!" is different from "update1soon!" - even a single incorrect character will cause redemption failure. Always copy and paste codes directly when possible to avoid manual entry errors.
Certain codes are platform-exclusive. The "30kLikes!" code specifically only works on desktop/PC versions of Roblox. Mobile players cannot redeem this code regardless of how many times they attempt it.
Grand Kaizen stands as one of Roblox's most ambitious Jujutsu Kaisen-inspired fighting experiences, developed by OverBlock studio. Originally released in 2021 and then re-released with major improvements in 2023, the game lets you explore a mystical world of sorcery where you choose between becoming a powerful Jujutsu Sorcerer defending humanity or a High-Grade Curse spreading chaos.
The game features an extensive storyline following the anime's narrative structure, diverse weapon choices ranging from cursed tools to martial arts techniques, and stunning visual effects that rival AAA Roblox titles. Whether you're venturing solo through the campaign or teaming up with friends for boss raids, Grand Kaizen delivers an authentic anime RPG experience.
Character Progression System Your journey begins as a Grade 4 sorcerer or curse, the lowest rank in the jujutsu hierarchy. Through completing quests, defeating NPCs, and conquering bosses, you'll earn experience points to level up and increase your grade. Each level unlocks new abilities, increases your stats, and opens access to more challenging content areas.
Cursed Technique System The heart of combat revolves around cursed techniques - supernatural abilities drawn from the Jujutsu Kaisen universe. You'll start with a random technique rolled when creating your character, ranging from common abilities like basic curse manipulation to legendary techniques like Domain Expansion variants. This is where codes become invaluable, as technique rerolls let you change your starting ability without creating a new character.
Combat Controls Master these essential controls to succeed in battle:
Efficient Leveling Strategy Focus on story quests marked with book icons above NPCs' heads. These provide 3-5 times more experience than side quests and unlock new areas faster. Save side quests (scroll icons) for when you need quick cash or are slightly underleveled for the next story mission.
Stat Distribution Guide New players often make the mistake of spreading stats evenly. Instead, specialize based on your playstyle:
Farming Efficiency The spawn area forest contains respawning Grade 4 curses perfect for early grinding. Create a circuit route hitting all spawn points for continuous combat without downtime. This method yields approximately 500-1000 XP per 10 minutes at early levels.
Twitter/X (@GrandKaisen) The official Grand Kaizen Twitter account serves as the primary code distribution channel. Developers post new codes here first, usually accompanying major updates or milestone celebrations. Enable notifications to catch limited-time codes that sometimes expire within 24-48 hours.
Discord Server Join the official Grand Kaizen Discord with over 41,000 members for exclusive code drops during community events. The announcements channel features pinned messages with all active codes, while the dev-updates channel previews upcoming content and potential code releases.
OverBlock Roblox Group The OverBlock Roblox Group occasionally posts group-exclusive codes for members. Joining is free and grants access to development updates, beta testing opportunities, and special reward codes during group milestones.
YouTube Channel The Grand Kaizen YouTube channel hides codes in video descriptions and premieres. Developers sometimes spell out codes verbally during livestreams, rewarding active community viewers.
Grand Kaizen Trello Board The official Trello board maintains comprehensive game information including technique tier lists, boss strategies, and occasionally posts exclusive codes in update logs. Check the "Announcements" and "Codes" sections regularly.
Reddit Communities The r/GrandKaizen subreddit and general Roblox communities often share newly discovered codes within minutes of release. Sort by "new" during update periods to catch codes before they potentially expire.
Support Discord A separate Grand Kaizen Support Discord exists for technical issues but occasionally shares compensation codes when major bugs affect gameplay.
Technique rerolls are the most valuable currency in Grand Kaizen, allowing you to completely change your cursed technique without starting over. Each reroll randomly selects from the entire technique pool, with these drop rates:
Spins serve multiple purposes beyond just technique rolling:
Strategic Redemption Timing Save technique rerolls until you understand which techniques suit your playstyle. New players often waste rerolls chasing rare techniques without knowing if they'll enjoy the gameplay. Play with your starting technique until level 20-30 before deciding to reroll.
Double Reward Events OverBlock occasionally runs 2x reward weekends where code redemptions provide doubled benefits. Check the Discord announcements for these events before redeeming saved codes.
Based on current game balance and community consensus, these techniques dominate PvP and PvE content:
Limitless The signature technique of Gojo Satoru offers unparalleled defensive capabilities with Infinity and devastating offensive power through Red, Blue, and Purple attacks. Players with this technique consistently top leaderboards.
Ten Shadows Megumi's technique provides incredible versatility through summoning various shikigami. The potential to unlock Mahoraga makes this technique scale exceptionally well into late game.
Sukuna's Cursed Technique Cleave and Dismantle offer consistent damage output with low cooldowns. The potential Domain Expansion "Malevolent Shrine" ranks among the strongest ultimate abilities.
Beginner Sorcerer Build
Beginner Curse Build
New codes typically release during major updates (monthly), milestone celebrations (every 5k likes), holiday events, and as compensation for server issues. The development team maintains no fixed schedule but averages 2-3 new codes monthly. Following official social media ensures you never miss limited-time codes.
No, each code can only be redeemed once per account. Creating alternative accounts to farm codes violates Roblox Terms of Service and may result in bans. The developers have implemented detection systems to prevent code abuse across multiple accounts.
Yes, codes function identically in private servers as public ones. Many players prefer redeeming codes in private servers to avoid the lag and potential bugs that occur in crowded public servers during new code releases.
Code lifespans vary significantly:
Grand Kaizen is the re-released and improved version by OverBlock studio, while "Kaizen" refers to a separate game by different developers. Grand Kaizen features updated graphics, bug fixes, more content, and active development. Always ensure you're playing the correct game at the official Roblox page.
Currently, Grand Kaizen doesn't support trading between players. All rewards from codes are bound to your account and cannot be transferred. The developers have stated trading might be added in future updates but no timeline exists.
Technical limitations in Roblox's mobile chat system cause compatibility issues with certain code formats. The developers prioritize PC stability but actively work on mobile-friendly alternatives for future codes.
This error appears when:
Solution: Verify the code against our active list, ensure exact formatting, and try on PC if mobile fails.
Despite reaching level 5, this error occasionally appears due to server synchronization delays.
Solution:
Sometimes rewards don't immediately appear in your inventory after successful redemption.
Solution:
The mobile redemption system frequently experiences issues during high-traffic periods.
Solution:
Veteran players have developed sophisticated rerolling strategies:
Top-ranked players recommend:
Efficiently managing in-game currency alongside code rewards:
Based on developer communications and Trello board updates, expect:
Version 2.0 (Q4 2025)
Halloween Event (October 2025)
45k Likes Milestone The game currently sits at 34k likes, growing by approximately 2k monthly. Expect a major celebratory code around this milestone with rewards potentially exceeding 50 technique rerolls.
Track these metrics for potential code releases:
Stay connected with the Grand Kaizen community through these official channels:
The Grand Kaizen community has developed numerous helpful resources:
Establish this daily routine to optimize your Grand Kaizen experience:
Morning Login
Prime Time Play
Before Logging Off
Many successful Grand Kaizen players have built followings by:
For players considering Robux purchases:
Grand Kaizen codes in September 2025 provide essential resources for both new and veteran players navigating this complex Jujutsu Kaisen-inspired world. With our comprehensive guide, you're equipped to redeem every active code, troubleshoot common issues, and maximize your progression through strategic resource management.
Remember to bookmark this page as we update it immediately when new codes release. The current codes won't last forever - "Update1Soon!" and "30kLikes!" could expire at any moment, so redeem them now to secure your free technique rerolls and spins.
Whether you're aiming to become the strongest Jujutsu Sorcerer or the most feared High-Grade Curse, these codes give you the edge needed to dominate the Grand Kaizen universe. Join the thriving community of over 40,000 Discord members, follow the official social media channels for instant updates, and embark on your journey to master cursed techniques and conquer challenging bosses.
The path to becoming a Special Grade sorcerer starts with a single code redemption. Don't let these free rewards slip away - launch Grand Kaizen, reach level 5, and claim your rewards today. See you in the world of sorcery, and may your technique rerolls bring you legendary powers!