I've been playing Resistance 2 lately, and the "Exotic Weapon Collector" trophy is irritating me. Achieving 20 kills with every weapons sounds easy, and i've almost accomplished this. However, it's the Pulse Cannon kills that is annoying me. Where do I gain kills with this weapon? Where can it be located? I know you could say "use it on the *SPOLIER TURN AWAY NOW* ...Kraken", but it would talk a considerable amount of time to do it. Help would be appreciated.