Exclusive units are some of the most valuable content in SpongeBob Tower Defense, especially because they are not obtained through normal summons. With the recent AFK system rework, players now have a chance to earn three powerful exclusive units just by staying idle in the game.
These units are not only rare, but also extremely strong for Endless mode and late-game content. In this guide, we will break down all three exclusive units, how to unlock them, and the best way to farm them efficiently. Also check out our SpongeBob Tower Defense Codes for more rewards!
What Are Exclusive Units in SpongeBob Tower Defense?
Exclusive units are special characters that cannot be pulled from banners or shops. They are tied to specific systems or events, and once those systems rotate or change, the units may become unavailable. The three exclusive units currently available through AFK mode are:
- Captain Doug Quazar (Secret)
- Sir Urchin (Exotic)
- Kenny the Cat (Prismatic)
All three are obtained from the same AFK reward pool.
How to Unlock Exclusive Units Using AFK Mode
Step 1: Enter the AFK Portal
- Go to the AFK portal in the main lobby
- Talk to Patrick to enter the AFK zone
- Stay inside the area to start earning rewards automatically
You do not need to fight enemies or interact with anything. Simply remaining in the AFK area is enough.
Step 2: Understand AFK Reward Timers
AFK rewards are given based on time spent in the AFK zone.
Reward intervals:
- Ultra VIP Game Pass: every 8 minutes
- No Game Pass: every 10 minutes
Each reward claim gives you a chance to obtain one of the exclusive units.
All 3 New Unit in Spongebob Tower Defense Guide
Exclusive Unit #1: Captain Doug Quazar (Secret Unit)
Captain Doug Quazar is currently considered one of the strongest secret units in the game. Key features:
- Very high damage output
- Extremely fast attack speed
- Large attack range
- Pierce-type attacks
This unit can outperform many older secret units, especially in Endless mode. If you only manage to get one exclusive unit, Captain Doug Quazar is already worth the AFK grind.
Exclusive Unit #2: Sir Urchin (Exotic Unit)
Sir Urchin is an exotic unit that surprisingly competes with higher rarity units. Why Sir Urchin is strong:
- High damage per hit
- Fast attack speed
- Excellent wave-clearing ability
- Performs well deep into Endless mode
Even though he is an exotic unit, Sir Urchin can outlast many prismatic units in long runs, making him one of the best exotics currently available.
Exclusive Unit #3: Kenny the Cat (Prismatic Unit)
Kenny the Cat is the rarest and strongest of the three exclusive units. Main strengths:
- Massive damage output
- Very large attack range
- Line-based attacks for crowd control
- Top-tier performance in Endless mode
Kenny the Cat is widely considered the best prismatic unit in the game right now. However, it is also the hardest to obtain, requiring long AFK sessions and patience.
Can You Get Shiny Variants?
Yes. All three exclusive units also have shiny variants available through AFK rewards. Shiny versions offer:
- Improved stats
- Higher value for late-game builds
- Extreme rarity
The longer you AFK, the better your chances of rolling these variants.
Best Tips to Farm Exclusive Units Faster
- AFK overnight or during long idle sessions
- Use a private server to avoid disconnects
- Disable sleep mode on your device
- Check back regularly to confirm you are still in the AFK zone
Consistency matters more than short sessions.
The AFK rework in SpongeBob Tower Defense has made it possible to earn three powerful exclusive units without spending premium currency. Captain Doug Quazar, Sir Urchin, and Kenny the Cat are all top-tier units that can completely change your Endless mode performance. While they require patience and long AFK sessions, the rewards are more than worth it. Stay consistent, keep AFK farming, and you will eventually unlock all three exclusive units.