 Nina Cortex was originally created and designed by Duke Mighten for Traveller's Tales as a playable character in "Crash Nitro Kart" before development duties of the game were transferred to Vicarious Visions.During her conception it was undecided whether she would be Neo Cortex's daughter or niece, hence the deliberate discrepancies regarding her relationship with Cortex in "Crash Twinsanity".As everyone kept referring to her as Neo's niece, the label stuck and became official.