Splitter Rifle

The Splitter Rifle is the Flux Rifle's upgrade. It's sniper capabilities enable Ratchet to fire a devastating laser beam that explodes, rips through the armour of enemies, and rips through multiple enemies.

Upgrading
The best way to get this upgrade, is to go to Planet Mylon. Make sure your Flux Rifle is at least at level 3. Once you land, go to the ledge that overlooks two Robonoid Commanders. Simply equip the Flux Rifle, kill them, jump into the quicksand, commiting suicide until you get the upgrade.