Crash and Cortex attempt to enter the Iceberg Lair through the front entrance, but the door is frozen shut, forcing the pair to take an alternate path inside. They inadvertently free Uka Uka in the process, who attacks them with a giant body formed from ice. Uka Uka is convinced by his twin brother Aku Aku to join forces and attack the Evil Twins themselves, but both are easily defeated. Cortex introduces the Psychetron, a device that will allow travel to the Tenth Dimension, but requires Power Crystals to function. Crash uses Cortex as an impromptu snowboard in an attempt to reach Doctor N. Gin's battleship and gather the Power Crystals, and destroys Dingodile's shack in the process. Crash's venture through the battleship eventually results in an explosion of a cache of TNT crates, which sinks the ship and propels Crash into a confrontation with Doctors Nefarious Tropy and Nitrus Brio on a distant ice floe. Crash returns to the Iceberg Lair with Cortex, where the latter is attacked by a recovered Coco, who believes that Cortex kidnapped Crash. Coco's assault sends two of the Power Crystals flying into the Psychetron, which damages the machine and paralyzes Coco in a chain reaction. Crash and Cortex set a course for Madame Amberly's Academy of Evil in the hopes of recruiting Cortex's niece Nina to assist in repairing the Psychetron.