Cortex's Lair is the eighth and penultimate level in Crash of the Titans for the Nintendo DS.
The level starts outside the mansion, in a small grassy area, very similar to the level N-Sanity Highlands. After defeating the horde of mutants right in front of the main door of the mansion, the player can get inside and make his way through the hallways. Portraits of Cortex are hang on every wall. after this small section, the player enters the laboratories hidden inside the mansion.
After the laboratory section the level ends in what can be described as a giant refrigerator: everything here is frozen and icicles grow from the ceiling.
- Cortex's design in the portraits seen in this level seems to bear a strong resemblance to his original design.