The SpongeBob Tower Defense Update 23, released on June 6, 2025, introduces major new content including exclusive units, a revamped shop system, mobile reward features, and a full questline event coming soon. Whether you’re hunting for the Bemmy Buddy unit, preparing for the Mermaid Man questline, or trying to unlock the shiny version of Barnacle Man, this patch has something for everyone.
Here’s a full breakdown of everything included in SpongeBob Tower Defense Update 23, along with how to get the new rewards, unlock mounts, and claim limited codes.
Bemmy Buddy – How to Unlock and Upgrade
The biggest addition in Update 23 is Bemmy Buddy, a special unit that starts as a temporary companion and can be upgraded to a permanent unit.
Bemmy is unlocked by completing 9 missions in the new update questline.
Completing these missions grants large amounts of XP, boosts, and even unlocks:
Permanent Bemmy Buddy
Shiny Version of Bemmy
Bubble Taxi Mount
Secret Chest Boost
Once upgraded to level 100, Bemmy becomes a fully permanent unit, making it a valuable addition to your roster.
Barnacle Man – New Raid Unit
Replacing Captain Magma in the Raid Shop, the powerful Barnacle Man now takes center stage:
Can be obtained in normal and shiny versions
Available via the Raid Shop rotation
Requires raid currency, earned by completing multiplayer raid battles
Barnacle Man’s abilities make him a strong pick for crowd control and multi-target coverage, especially in late-game maps.
Mr. Krabs’ Merchant Shop – Now Global and Real-Time
One of the biggest quality-of-life changes is the Merchant Shop rework:
The shop is now globally synced for all players
Refreshes every 15 minutes
Includes rare units, items, and chances for Mythics or Secret Units
This makes it easier to track high-value shop spawns with your friends or community and avoids desynchronized timers.
Tip: Always check the shop at reset, especially during event weeks where rarer items are more likely to appear.
Upcoming: Mermaid Man Questline (June 12)
Starting June 12, a brand-new storyline event will launch:
Includes the Mermaid Man Questline
Unlock the exclusive unit: The Moth
Receive a unique mount and exclusive chest upon completion
This event is time-limited and will likely include additional stages or side content as it unfolds. Be ready to grind when it drops!
Mobile Ad Rewards – Free XP, Gems, and Chests
Players aged 13+ on mobile devices now have access to optional ad viewing for rewards:
Ads can grant:
Free Gems
Chests
XP for units
Available via specific reward menus or post-match screens
This gives casual players or mobile-first users a new way to earn resources without grinding extensively.
Redeem Code – Free Bonus with “CANNEDBREADISGOOD”
To celebrate the update, developers have released a limited-time code:
Code:
CANNEDBREADISGOODReward: In-game bonuses (gems, XP, or items)
How to redeem:
Open the Settings or Codes menu in-game.
Enter the code as shown above.
Hit Redeem to instantly claim your bonus.
Claim this code before it expires!
Shiny Units, Secret Boosts, and Progression Tips
Update 23 also supports:
Shiny evolution paths for certain units like Bemmy and Barnacle Man
XP farming efficiency through mobile ads and daily quests
Progression tied to the Secret Chest Boost, which increases chest drops across maps
Tips for Update 23 Progression:
Focus on completing all 9 Bemmy missions early.
Farm raids to prepare for Barnacle Man purchases.
Check the merchant shop every 15 minutes with friends or Discord groups.
Prepare gear and inventory for the Mermaid Man event starting June 12.
Final Thoughts
SpongeBob Tower Defense Update 23 is a major content drop for both active and casual players. With the introduction of Bemmy Buddy, the rotation of Barnacle Man, global merchant refreshes, and mobile ad rewards, this patch makes progression easier and more dynamic than ever.
Don’t forget to prepare for the Mermaid Man Questline on June 12, and claim the code CANNEDBREADISGOOD while it lasts. Whether you’re chasing shiny units or grinding for mounts, Update 23 is full of rewards for every kind of player.