Dr Nefarious waiver to be evil, and binds to the Q-Force, but Lawrence is angry with him and by creating a Blaster that combines all. He conbines Klunk with Reactor and Klunk use the Blaster on Ratchet, Clank, Qwark and Nefarious, making Clanchet & Dr Nefqwark. Now the Heroes must defeat Klunk in more than one occasion and save the dimensions.
- Ratchet & Clank Fusion: United Forever (released 2011)
- Ratchet & Clank Fusion: Dimensional Problem (released 2012)
- Ratchet & Clank Fusion: The Only Exit (released 2012)
- The European versions of the games don't carry the "fusion" subtitle and is called "Clanchet & Nefark"
- The Ratchet & Clank Fusion saga was originally due to be titled "Ratchet & Clank: Amazing Team" but made a shorter title.
- Dead or Dead is considered a Fusion series game on some websites, though it is not titled as such.