Ratchet & Clank 2: Going Commando
35 Achievements
20-25h
PS3
BFG
Obtain the Zodiac Gadget
18.7%
How to unlock the BFG achievement in Ratchet & Clank 2: Going Commando - Definitive Guide
The Zodiac is a weapon, not a gadget and costs 1.5 million bolts and first comes available when you revisit the flying lab on Planet Aranos, but it wont really be obtainable till you enter challenge mode.