Regigigas is a large, white, golem-like Pokémon. It has large yellow bands on its shoulders and wrists, and a yellow sloping section on its chest that appears to be its head. This section contains seven black circular "eyes" arranged in a specific pattern. The pattern is Regigigas's way of showing its anger; its eyes glow red when it is provoked. It has six spots that are apart from its eyes, which appear to be gemstones. These gemstones seem to represent the original three Legendary titans, with red gems representing Regirock, blue gems indicating Regice, and silver gems representing Registeel. Regigigas has long arms, with three fairly human-like white fingers, and short legs. Its body is covered in black stripes, and it has large bushes of moss growing in its back and feet.
Regigigas is a skilled craftsman. It created golems out of inanimate objects and elemental energies in its image, bringing them to life. Regigigas is also capable of controlling these Legendary titans, even if they already belong to a different Trainer. It can also survive extreme conditions as it is able to work with the boiling temperatures of magma as well as frigid ice (-328 °F / -200 °C). When Regigigas is disturbed from its slumber, it goes on a rampage and shoots powerful beams of energy. When it is befriended, however, it is calm and gentle, as seen in Pillars of Friendship!. According to Sinnoh legend, Regigigas's strength enables it to move continents.
Regigigas is the only known Pokémon capable of learning the move Crush Grip. Prior to Generation IX, Slow Start was its signature Ability.
