E3 06: Ratchet & Clank PSP Preshow First Look - GameSpot

We get an exclusive look at Ratchet & Clank's PSP debut.
Ratchet & Clank is an all-new sci-fi adventure made exclusively for the PSP, and it features a variety of new weapons and gadgets.

A Brief History Of Ratchet And Clank - Green Man Gaming Blog

E3 2015: PlayStation Press Conference [Official Discussion Thread] : r/PS4

PlayStation 4™ Community Official Thread

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News - June, 2014

Ratchet & Clank: Size Matters (PSP) ALL Copernicus Leslie Qwark Scenes 1080p HD

Pokitaru's Full Gameplay Walkthrough - Ratchet Galaxy

Sonic June: i didn't say i was any good at it i just said i'd do it - The Something Awful Forums