The origin of the energy cores that animate Roggenrola is unsure. Analysis shows them as similar to Z-Crystals, but composed of no extraterrestial material. Unova televises Roggenrola bowling, where the chance of explosion is part of the show.

When people get lost in caves, Boldore are sent in to find them. They always find the Trainer, but sometimes lead them to sources of water instead of the exit. This water is unfit for human consumption, but has very low salinity, so it’s a good idea to take some.

Gigalith’s energy core absorbs solar rays, forcing it out of caves and into bright sunlight. Poachers camp at cave mouths and wait for Boldore inside to evolve. The crystals sell for absurd prices on the black market.