Crash of the Titans - Concept Pitch
The video below was produced in May 2006, over a year before Crash of the Titans was released. It shows the pitch that was put together and shown to the publisher before proper development began, back when the game went around by the name of Crash jackin'. A lot of the core features seen in the final version were already part of the initial concept (interestingly, you can see Crash dodging a Ratcicle attack, yet dodging wasn't implemented until Mind Over Mutant). Note that Crash's model in this video was only replaced with the final one much later in development, and it's still present in the Game Boy Advance version.
The video was first posted on the Internet in June 2012 by Adam Cable, one of the artists for Crash of the Titans and other games by Radical Entertainment.
Pre-production Manual
This manual was also revealed by Adam Cable, and it's the development team's early mock-up of what they were targetting at the time. It's very interesting thanks to how different the game's original plans were, and lots of features were changed or removed entirely. Apparently, the PlayStation 2 was meant to be basis for the game's different versions before the team chose the Wii.
The story was going to feature Baby-T and Pura (but oddly, not Polar), marking their return to the series after a long absence. Both were supposed to have been kidnapped for some undisclosed reason, but in the end, Aku Aku and Coco got that role instead.
Coco and Crunch were intended to be playable via jacking at first. Players were supposed to meet them at certain points in the game, and by jacking them, they could control their special abilities — Coco would be able to para-glide and gain altitude from thermal drafts, while Crunch would use a slingshot move of some kind.
Proposed Logo
A very early mock-up proposed as the basis for the game's logo.