Crash Twinsanity

Cancelled GameCube version

A GameCube version of the game was planned, but never released.

Music Glitch

A glitch exists in the PlayStation 2 PAL releases in the level Slip Slide Icecapades, in which dying at any point of the level will result in the game playing the music from the previous level, Iceberg Lab, when returning to the last checkpoint. This glitch is permanent and cannot be corrected without resetting the game; the most likely reason for this glitch existing is that the music change occurs at the end of the cutscene leading into the level, and restarting the level from the end of the checkpoint bypasses the cutscene. It is not known if this glitch exists on other versions of the game.

Plothole

Partway through the game, Crash and Cortex learn that the antagonists, the Evil Twins, live in an alternate universe called the 10th Dimension, with one of the twins bringing up the large amounts of treasure they own before the other twin comically tells him to change the subject. Crash and Cortex learn that they need power crystals to power Cortex's machine, which will allow them to travel to the 10th Dimension. This leads them to N. Gin's battleship and, after collecting a power crystal, defeating N. Gin and running away from a hungry walrus, the player faces N. Tropy and N. Brio. N. Tropy says "the rats are leaving the sinking ship", which doesn't make sense as N. Gin's battleship wasn't sinking, and while there were rats they weren't leaving. He then says "tell us where the treasure is and we'll let you go" - he is referring to the Evil Twins' treasure, but the three of them have never met the Evil Twins and should have no way of knowing about it. The three characters are then completely absent until the end of the game, where they are found inside the Evil Twins' treasure room (inside the 10th Dimension), despite the fact that they shouldn't have any idea the dimension exists, let alone be able to travel to it without the use of Cortex's machine. Spyro the Dragon also makes a cameo in this scene, where it is revealed that the treasure is actually his.

Rushed Development

Development of this title was heavily rushed. This is referenced in-game when Cortex says "we must travel to a new dimension! It was supposed to be two new dimensions, but we ran out of time."

Wrath of Cortex reference

The game references it's predecessor, Wrath of Cortex, in a scene where Cortex is confronted by angry penguins whose cheques from Cortex bounced; Cortex blames it on Wrath of Cortex's failure.