How On ratchet and clank size matters do you get the ice armor?

In "Ratchet & Clank: Size Matters," you can obtain the Ice Armor by completing the optional challenge on the planet Pokitaru. After defeating the enemies in the area and progressing through the level, look for the Ice Armor hidden behind a series of platforming challenges. Once you've reached the location, you will unlock the Ice Armor, which provides Ratchet with enhanced protection against certain types of attacks.