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Why this question is trending again as mobile towers push genre limits. Players rediscover secret mechanics that redefine late game power spikes.
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Bloons TD 4 Expansion: What Secret Tower Broke the Game? is the Monkey Sub merged with radar tracking and seek upgrades. Studies indicate this hidden tower locks air coverage, bypassing standard defenses completely.
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Rushing these towers early floods screens with invisible threats. Research shows pairing them with support slows bloon waves dramatically. Target radar coverage before economy climbs.
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This setup reshapes speed runs and challenge runs alike. One line takeaway master radar and seek turns every round into air dominance.
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Q: Which expansion adds this tower?
A: The mechanic appears in later mobile ports and community rounds.
Q: Is the tower still balanced in group play?
A: Yes, team cost and shared damage keep it controllable.
