The way the Ratchet & Clank wiki capitalizes words has changed; therefore, this article should be checked, and, if necessary, capitalization should be fixed.
The Y.E.T.I.s, also known as the Tundorian Yeti (in Ratchet: Deadlocked), was a large, ferocious creature species which Ratchet and Clank encountered on the icy tundra of planet Grelbin. Clank encountered them again on the Ski Slopes of Glaciara. They were genetically created by MegaCorp, with the original purpose to hunt down and kill the Arctic Leviathans, that roamed the planes. However, since their creation, they had gotten out of control, and in the end lived free in the arctic landscapes around the Bogon Galaxy.
It is unknown as to what "Y.E.T.I." stands for.
Ratchet & Clank: Going Commando
Seemingly working together with the Leviathans, on protecting the Moonstones on the planet, the Y.E.T.I.s would aggressively pounce on anyone disturbing their territory, striking them with their claws. They will also jump up from deep pits, possibly indicating an underground concentration of the Y.E.T.I.s.
A huge problem for Ratchet was, that sometimes as much as 25 Y.E.T.I.s would attack him, if he didn't kill them immediately as they jumped out of their pit; the whole screen could be filled in mere seconds, if they were not disposed of quickly.
Ratchet & Clank: Up Your Arsenal
Secret Agent Clank movie
A Y.E.T.I. appears in the Secret Agent Clank movie.
Unnamed ice planet
Other side stories and events
Secret Agent Clank
Glaciara Ski Slopes
Y.E.T.I. hair was known to be incredibly strong, which is why it was harvested by several individuals and corporations. Vox Industries was known to use Y.E.T.I. hair in its Versa-Wrench Multicore's core, making the Wrench both lightweight and powerful all at the same time.
Behind the scenes
The Y.E.T.I.s is a difficult enemy to fight as its pre-attack animation is too short.
- Ratchet & Clank: Going Commando (first appearance)
- Ratchet & Clank: Up Your Arsenal
- Ratchet: Deadlocked (mentioned only)