Unlock Insomniac Muesuem
Collect ALL 40 Zoni and defeat the final boss to get the option of going to the Corvus sector and entering Lord Vorselon's ship to fight him. Select the 'Time Warp' option and the Insomniac Moon/Insomniac Museum will become unlocked when you defeat him.
More tricks, tips and cheats for this game are right here - Ratchet & Clank: A Crack In Time cheats
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