Spikes R Us

Spikes R Us is a Specialty Building for the Spike Factory added in an update to Bloons TD 5 on 21st of June, 2012.

Upgrade 1: Reduces the cost of Spike Factories and their upgrades by 5%. It costs $500 Monkey Money

Upgrade 2: Increases spike duration by 10%

Upgrade 3: Generates one free spike pile every level

However, purchasing this Specialty Building will make Tack Shooters and their upgrades will cost 5% more.