List of Crash Twinsanity pre-release and unused content

The game was originally developed under the title Crash Bandicoot Evolution with a largely different concept and gameplay. The plot involved the Evil Twins and the Ants. They served as the antagonists and were traveling to different planets to steal materials to make their own planet. This storyline was eventually changed due to the fact that it was too similar to the one from the Template:W. Since the game was scrapped quite far into development, the developers had to begin from a nearly clean slate while the original deadline for the game still remained, causing the game to be rushed and a notable amount of content to be cut, such as cutscenes that were supposed to explain how N. Tropy, N. Brio, and even Dingodile found out about the Evil Twins' treasure. Many of the unused assets from these early phases can still be seen in the game's concept art galleries. Before the game got its final title, many others were proposed, such as the already mentioned 'Crash Bandicoot Evolution'; others were 'Crash Bandicoot: Fully Fluxed', 'Crash Bandicoot: Tandemonium', 'Crash Bandicoot: A Whole New Dimension', and the playable demo version title 'Crash Bandicoot: Unlimited'. Eventually, 'Crash Bandicoot: Twinsane' came up, which eventually evolved into Twinsanity. In the game, many hidden items can be found through either using a cheating device or a glitch. These hidden items can range from a Life Crate to items never seen through normal gameplay.

Spiralmouth composed the music for this game, who would later compose the music for Crash Tag Team Racing along with Marc Baril. Many remixes of the Crash Twinsanity soundtrack are present in Crash Tag Team Racing.

Several characters were removed from the game, including a giant Ant that would have led the Ant Drones, Capu Capu, who owns the boat that takes Crash to the Iceberg Lab or N. Sanity Island, and Evil Capu Capu, who would have served the same role as his "good" counterpart, but in the Tenth Dimension.

During development, many levels were removed from the game. Most never entered development and some were deleted, but can still be seen in photos or videos. Cut levels include Gone a Bit Coco, Rehab Lab, Security Insanity, a cut Train Express Level and a cut Hoverboard Level among others.

Coco would have had a much bigger role and would have even been a playable character and would have joined Crash, Cortex and Nina on their quest to stop the Twins.