Onix

The Rock Snake Pokémon
#095 - Onix
Evolve	Steelix
Debut	Pokémon: Red Version Pokémon: Green Version
Species Info
Type	+ +
Height	8.8 m (28'10")
Weight	210.0 kg (463.0 lbs.)
Color	Gray
Gender Ratio	1♂ : 1♀
Ability	Rock Head / Sturdy
Hidden Ability	Weak Armor
Egg Group	Mineral
Icon		Sprite
		File:095sprite.png
Footprint
30px
Base Statistics
Hit Points	35	Speed	70
Attack	45	Sp. Attack	30
Defense	160	Sp. Defense	45
Training Info
Catch Rate	45	Hatch Steps	6,400
Base Exp.	108	Effort Points	Def
Happiness	70
To Lv.100	Normal

Kanto #	Johto #	Hoenn #	Sinnoh #
< 095 >	< 062 >		< 034 >
Unova #	Johto (IV) #

Onix is a serpentine rock Pokémon that was introduced in the first generation games. Originally believed to have no evolutionary line, it was later discovered to evolve into Steelix in the second generation.

Information

Onix can rapidly burrow through the ground by at speeds of 50 miles per hour in search of food by squirming and twisting its massive body. It absorbs many objects as it digs, which make its body so solid. The tunnels it forms are often used as homes by Diglett. The loud roar of its tunneling echoes and can be hard from miles away. Onix has a magnet in its brain which acts as a compass so that it does not lose direction while burrowing.

As an Onix grows older, its body slowly becomes rounder and smoother. The stone portions of its body also harden to become similar to black-colored diamonds. They feed on large boulders, and their tunneling has also caused tremors and rumbling. An Onix will eventually evolve into a Steelix only when traded while holding a Metal Coat.

Appearances

Mainstream Games

In Pokémon: Red, Blue, Yellow, FireRed and LeafGreen, Onix appeared uncommonly at Rock Tunnel and more commonly at Victory Road. In FireRed/LeafGreen, they could also rarely be found at Sevault Canyon.

In Gold, Silver, Crystal, HeartGold and SoulSIlver, Onix could be found at Union Cave, Victory Road, Rock Tunnel and Mt. Silver, and one could also be obtained by trading a Bellsprout to a trainer at Violet City. In HeartGold'/SoulSilver, Onix could also be found at Route 47's Cliff Cave and the Safari Zone's Wasteland area. Through the Pokéwalker, Onix could also be caught at the Dim Cave, Rugged Road and Night Sky's Edge courses, from which they could be transferred to HeartGold/SoulSilver.

In Diamond, Pearl and Platinum, Onix were commonly found at Oreburgh Mine, Iron Island, Victory Road, Snowpoint Temple (Diamond/Pearl only) and Stark Mountain (Diamond/Pearl only). In Platinum, Onix were also found in Wayward Cave. In Black and White, Onix could be rarely found in the lower area of Relic Castle.

Other Games

Onix appeared in Pokémon Pinball, where it could be caught at Rock Mountain and Indigo Plateau. In Pokémon Puzzle League, Onix was part of only Bruno's three-Pokémon team. In Pokémon Trozei!, it could be found at Phobos Drill, Endless Level 46, Forever Level 23 and Mr. Who's Den.

In Pokémon Mystery Dungeon: Red and Blue Rescue Teams, it was found at the twenty-first through twenty-third floors of Magma Cavern, the first two floors of Magma Cavern Pit and the fortieth through fiftieth floors of Southern Cavern. In Pokémon Mystery Dungeon: Explorers of Time and Darkness, it could be recruited at the first nineteen floors of Mt. Travail. Onix also appeared in Pokémon Rumble at Rocky Cave.

Other Appearances

Video Games

• In the Super Smash Bros. series, Onix was first featured in the original Super Smash Bros. as one of the Pokémon that could appear at random from the Poké Ball item. It would fly up to the sky and drop rocks. A float of Onix would later appear in the Poké Floats stage seen in Super Smash Bros. Melee.

Other Media

• In the Pokémon anime, Onix was featured as one of Brock's main Pokémon. However, after the Johto series he left it with his brother Forrest at the Pewter City gym. It was later shown to evolve into a Steelix. One episode during the Kanto series featuring a giant Onix rampaging until Bruno managed to calm it by pulling out a Sandslash that was stuck in it. During the Orange Islands arc, the gym leader Drake used an Onix in battle, and one episode revolved around the search for a Crystal Onix. A Hoenn era episode featured a King Onix with its own kingdom. Roark was later shown with his own Onix that defeated Ash's Turtwig and Pikachu in the first gym battle but was beaten during the rematch.
• In the Pokémon Adventures manga, Onix was featured as one of Brock's Pokémon. Bruno was also later shown with his own Onix, which acted as a "bridge" on which he had his battles, and it was later used to evacuate the Elite Four from Cerise Island.

Trivia

• Its name is a play on "onyx", the name of a mineral.