- Voice actor: Not Known (both English and Japanese)
Rhyhorn is a small rhinoceros-like creature with a body consisting of gray, rocky plates. It has a ridge on its back, and visible fangs protruding from its upper jaw. Rhyhorn has four short legs with two claws. Its head is triangle-shaped with a single, short horn. Rhyhorn has small triangular openings on the sides of its head, which can be presumed to be ears. Its height is 3'03" and weight is 253.5 lbs.
A female has a shorter horn.
Rhyhorn's most well known method of attack is to charge straight into things. A charging Rhyhorn can knock a trailer flying. Rhyhorn can also use various Rock and Ground attacks. They can learn special attacks, but these types of attacks are not very strong when used by Rhyhorn. Rhyhorn are one of the few Pokémon capable of learning Megahorn.
According to earlier entries in the Pokédex, Rhyhorn is actually brainless. This perception was, most likely, not meant to be taken literally. This conclusion of brainlessness was most likely derived from Rhyhorn’s exceedingly unintelligent methods of battle. Rhyhorn’s animal instinct is simply to charge at any enemy or barrier that threatens its well-being. The species is also perceived to have a very short memory, and is seemingly often confused by circumstances it directly influenced. It is popularly believed that they are only able to remember one thing at a time. Despite their severe setbacks in intelligence, they have been recorded as being surprisingly perceptive once captured.
- Main article: Pokémon food
The first Pokémon that Ash, his friends and the others saw at Pinkan Island in In the Pink was a Rhyhorn, which was pink in color. Although initially unaware of the trio, Ash rushed up to it and antagonized it. It then cornered the gang at a cliff-edge, and attempted to charge at them, who were saved by Sonic using Chaos Control to warp aside, causing Rhyhorn to charge over the cliff. It was then rescued by Ash and the others with the help of the resident Officer Jenny.
Rhyhorn first debuted in The Flame Pokémon-athon!, entering a race with its Trainer. Rhyhorn jumped onto a stone but they sank, and Rhyhorn and its Trainer were eliminated from the race.
A Rhyhorn appeared in A Chansey Operation, where it was one of the injured Pokémon brought to the clinic.
A Rhyhorn owned by Corey was one of the Pokémon that was captured and cloned by Mewtwo in Mewtwo Strikes Back. The Rhyhorn clone was seen again in Mewtwo Returns, having by this point bred a baby Rhyhorn with the clone of Fergus's Nidoqueen.
A Rhyhorn was one of the Pokémon seen at the Pokémon Swap Meet in Tricks of the Trade.
A Rhyhorn was seen in the wild in The Legend of Thunder!.
Multiple Rhyhorn appeared in Lucario and the Mystery of Mew as part of the feuding armies.
A Rhyhorn appeared in Camping It Up!.
Rhyhorn also appeared in The Power of One.
Rhyhorn, Spikes Pokémon. With its hard and protective shell, its Tackle is very powerful. Rhyhorn is known for its physical power and its considerable offensive and defensive skills.