Golem

Golem appeared in 1996 video game called Pokémon Red & Green. Golem is a Megaton Pokémon. Golem's annual molt leaves behind a shell that makes for good fertilizer when its incorporated into the soil. This Pokémon can easily stand up to an explosion, but it really hates getting wet.

Alolan Golem
The rocks that Golem fires from its back carries a strong electrical charge, so even a glancing blow can deliver a powerful shock. Sometimes it grabs a Geodude to fire instead.

Appearance
Golem is a bipedal Pokémon with a spherical body covered by a shell of plated, green rocks. Its body is so hard that even dynamite cannot scratch it. Its head protrudes from center of the shell. The head has a flat snout with two pointed teeth in the lower jaw and red eyes. It has short arms that have three claws and two legs with feet that have four claws in front and one in back. The head and limbs are a light brown. Golem grows bigger by shedding its skin once a year. The discarded shell immediately hardens when exposed to air, crumbling away and returning to the soil. However, it stops shedding with age and moss grows over its shell. As shown in the Pocket Monsters Carddass Trading Cards, Golem's shell is hollow.

The anime has shown that Golem is able to withdraw its head and limbs into its shell and roll at high speeds. It is dangerous when doing this, as it is unable to see and may crash into or run over anything in its path. To prevent it from rolling into the homes of people downhill, grooves are dug into the sides of the mountains to divert the rolling Golem's course. It is seldom seen in the wild. However, it can be found living in mountainous regions.

In the Alola region, Golem has much shorter forearms with two claws. The feet have only two claws as well. Its face attracts iron sand, creating the appearance of a mustache, eyebrows and a large black beard. Jutting out of the top of its body are two large, black rocks with a smaller rock in-between. On the inner edge of the larger rocks are three golden dots. Alolan Golem is capable of firing the small rock by using magnetism. The rock will be electrically charged, creating shocks across the whole area of impact. Numbness and fainting can occur with even a glancing blow. If rocks are not available, it will fire nearby Geodude instead.