|Hardness||0 (Not mined directly)|
|Value||3 per unit|
Boolo Caps are a secondary mission objective. They can appear in any mission type. To be gathered, dwarves must be close enough to pick them up with the [USE] key ("E" by default). 20 must be collected to complete the secondary objective. Completing the objective gives 900 and 200 , both affected by Hazard Bonus.
Boolo Caps are pink and cyan-colored tall and thin mushrooms. The top glows in the dark, making them easier to spot.
Boolo Caps can be found in any of the eight biomes. While they are normally found growing out of the ground, they can grow high up on cave walls or ceilings, making their collection somewhat difficult.