Ratchet & Clank: Up Your Arsenal/Annihilation Nation

Win the Tyhrra-Guise
Travel to Annihilation Nation. Once you arrive there will be a brief cutscene introducing you to the audience. Once he finishes, you will need to beat and then

You will be awarded for beating Heat Street, and the Tyhrra-Guise for beating the Practice Challenge. Completing the Practice Challenge will also kick of a cutscene, after which you will have three available missions:
 * Return to the Phoenix
 * Play vid-comic Episode Two
 * Win all Challenges (optional)

Win all Challenges
This mission involves beating all the challenges available in. However, this cannot be completed at this time as some Challenges have story mission prerequisites which you have not yet completed.