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The Fission Accelerator was the special raritanium upgrade for the Razor Claws. As the Razor Claws struck enemies consecutively without their wielder taking damage, the claws became more powerful, glowing at first yellow, then red. The Fission Accelerator reduced the time it took for the claws to fully power up during this process, indicated by the claws glowing red.
- Ratchet & Clank Future: Tools of Destruction (first appearance)