The robot looks a lot like doctor Cortex himself, but with a more muscular body and a smaller head. It also has a giant golden necklace with a big "N" on it.
Bandipedia contains spoilers for all Crash Bandicoot related media. You have been warned!
In the 100% ending for the Nintendo DS version of Crash of the Titans, Nina replaces Cortex as the leader of the Cortex Commandos and, after disposing of Crash Bandicoot and his uncle, she and the rest of the minions activate the Cortexbot and march thowards Wumpa Island.
The spoilers end here. Whatever you do, don't scroll up—unless you want to!
- Crash of the Titans (DS version only)