"I call him CLUNK!" says Dr. N. Metropolis is a big, busy city with lots of pretty lights and hanging gardens. Scrunch trophy - after the first curve, go right up on the ledge and break the glass window.

When you get to the middle, you get a cut scene of "the final chapter of this galaxy's destiny". A giant metal sphere shows up that roboticizes things.

Nanotech health 86.

From the tank area, snipe the guys you can see ahead in the rounded area. Go right to a little square area, then left and down. Now at the "L" shaped area turn right. A few big guys drop from the ceiling - slay them. At the end, a big ship and three nasties come up from behind the back wall. Then go up and cross a short rift, another tank comes out. Gravity boot walk to a bolt to spin. Then angle the laser towards the big sphere and repoint it to the left to extend the bridge.

Shoot down another ship and take out more enemies. There's a vendor and continue point. "Look Clank, it's Dr. Nefarious" - Ratchet realizes that Clank is an enemy imposter. Evil Clank turns into a giant robot a la King Kong. You're on a moving train and fighting him. Soon another ship comes alongside for you to jump on - soon enough he's defeated. The real Clank apologizes. You end up by a Taxi - when you hop onto it, the Captain says the whole city has been turned into robots.

From the very first square room, go left to a teleporter that doesn't work yet. Go straight to hypershot to the bolt.

Return to the Phoenix to hear about the bio-obliterators. The President says he's half robot and will be re-elected. The cruiser went down on Planet Zeldrin.

Ratchet and Clank 3 - Up Your Arsenal Walkthrough