User blog comment:GameboyGabriel/What new things will there be in BTD6?/@comment-66.87.67.124-20130605195539

Specialty Building - special agent headquarters  cost 3200 monkey money

Reduces cost of special agents by 10 percent Increases popping power and attack speed by 15 percent and popping power to 3 layers Unlocks 3 new special agents - generator, smokey, and super monkey junior.