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The One-Eyed Tyhrranoids were the smallest variant of Tyhrranoid. Unlike their stronger brethren, they did not use weaponry. They gnashed at Ratchet with razor-sharp teeth, then would jump back to avoid a retaliatory attack. Ratchet could disguise himself as a purple-and-blue One-Eyed Tyhrranoid via the Tyhrraguise; however, it was the only one he could use.
Tyhrranoid Doorkeepers were teethless versions of the One-Eyed Tyhrranoids, due to this they were the weakest type and were not capable of efficient combat; however, when forced into combat they would utilize a lunging chomp attack. As such they were used by Nefarious to operate his defenses. Ratchet would have to communicate with them using the Tyhrraguise.
After may Tyhrranoids were turned into Robonoids they became Robonoid Doorkeepers, making them smarter and also giving them teeth (making them combat capable), thus making them identical to regular One-Eyed Robonoids.
The One-Eyed Tyhrranoids V2 were tiger-striped Tyhrranoids that were a stronger variant of One-Eyed Tyhrranoids, but otherwise behaved identically. This variant began appearing in Holostar Studios.
These Tyhrranoids were transformed into robots by Nefarious with his Biobliterator. These ex-organic life forms were now purely made of alloys and circuit chips. While their attack patterns remained the same they were now more powerful and had strong metallic armor where there was once tough hide. In this form, they became much smarter than they were before and made them harder to trick while using the Tyhrraguise.
Ratchet & Clank: Up Your Arsenal
- Tyhrranosis (evolve to V2)
- Holostar Studios
- Kerwan (converted to Robonoid)
Secret Agent Clank
Notable One-Eyed Tyhrranoids
One-Eyed Tyhrranoid appeared in the announcement trailer for Ratchet & Clank Future: Tools of Destruction.
- On Holostar Studios, there are falling one-eyed Tyhrranoids on the gravity tower where a Titanium Bolt is. If these are killed by Ratchet, a fast-falling effect shadow is left in mid-air.
- Ratchet & Clank: Up Your Arsenal (first appearance)
- Ratchet: Deadlocked
- Ratchet & Clank Future: Tools of Destruction (announcement trailer only)
- Ambiguously canon