Evil Twins

The Evil Twins (named Victor and Moritz) are two genitcally enhanced Parrots from the Tenth Dimension and the main Antagonists of Crash Twinsanity, who attempt to turn Crash's Dimension into the Tenth Dimension, and turn the Tenth Dimension into Crash's Dimension. They used to be Cortex's Pets when he was 8 years old, but were accidentally warped to the Tenth Dimension by the prototype Evolvo-Ray.

Prior to Crash Bandicoot
Victor and Moritz where once Cortex's Pets, whom he owned when he was at the Academy of Evil, and when Cortex was testing his prototype Evolvo-Ray on them, but when he used it on them, it warped them to the Tenth Dimension, where the reversal affects of the Dimension warped their fragile egg-shelled minds.

Crash Twinsanity
Years after being warped to the Tenth Dimension, they devise a plan to destroy Cortex and take the good out of his dimension and switch it out with their dimension.