Tektite

The Tektite is a one-eyed spider enemy that has appeared in almost every Zelda game. It comes in several varieties, including Red, Blue, and Golden Tektites. They are usually found in mountainous areas, such as Death Mountain and Mount Crenel. Tektites attack by jumping at Link. Certain varieties also posses the ability to walk on water. The Tektite is considered a "normal enemy", considering it only takes one or two sword swipes to defeat (depending on which sword/upgrades you have). Projectile weapons, such as slingshot seeds or arrows work as well. The hookshot or longshot is somewhat effective. It does not defeat the Tektite, but it does paralyze it for a brief moment, which is helpful, because of the Tektite's movements it can be quite annoying. Being that Tektites have appeared in almost every Zelda game, it is important to note that their attack pattern has hardly changed at all since they were first introduced. Physically, Tekities have seen drastic differences over very many games, but attack wise, they remain the same. The name "Tektite" is also another name for a spider, hence the Tektite's spider-like appearance.

Red Tektite
The Red Tektite can be found mostly on land. They are opposite to Blue Tektites, but always aim to use the same strategy in battle. They maneuver on ground rather cunningly, but a few slashes of your sword should easily kill these critters.

Blue Tektite
The Blue Tektite is a variety of Tektite which can be found in several games in the Zelda series. It will follow after you, bouncing, until it reaches you and does relatively small amounts of damage. They can walk on water and can jump down areas of considerable heights, which make areas like Lake Hylia and the Water Temple in Ocarina of Time perfect habitats for them. They are quite simple to kill; two blows with the sword or one shot from the Bow and Arrow will get rid of one in no time at all.

The Minish Cap
Quote from The Legend of Zelda: The Minish Cap Tektite figurine: "Appears on Mount Crenel, etc. They move by jumping long distances. Their movement can be unpredictable so attack them when they are still."

The Golden Tektite appears only in The Legend of Zelda: The Minish Cap. is a monster which looks like a normal tektite, but the golden tektite is much tougher and is also gold-colored. It will only appear as the result of a Kinstone Fusion. If Link defeats the beast, then a treasure chest will appear on the map.

Quote from The Legend of Zelda: The Minish Cap Golden Tektite figurine: "Appears in... Well, we're not sure! The legendary Golden Tektite. Its basic attack is the same, but it has much more power."