Crash Twinsanity

Get a 100% game completion rank to unlock a bonus FMV sequence.

Collect all the gems and crystals to unlock a secret video

Collect the indicated gem in a level to unlock that level's material in the corresponding Extras menu sub-menu.

Blue Gem: Boss Gallery
Purple Gem: Concept Art
Green Gem: Enemy Gallery
Red Gem: Storyboard
Yellow Gem: Unseen Gallery
Clear Gem: Video

When you have Uka Uka (the mask) press Black, White, Black and he will disappear. Note: This does not happen all of the time.

Reach the part where you have to battle Uka Uka in the ice suit. Just before he gets hit by the fire the third time, run in to the fire. If done correctly you will have fallen through the ground and be walking in the black pit down below. Note: You cannot get out of the pit or die until you go back to the beginning of the level.
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After you defeat N.trophy, it is possible to go back into the game. You must go to the Academy. Go in the opposite direction. You will be two levels behind. However, your game completion percentage will not change.

Avoid the shots and bombs of Cortex. After that, he will fire big green balls at you. When they reach you, throw them back by spinning. Do this three times.

First, avoid the Dingodile's fireballs. After that, stand on a mark and jump away when Dingodile wants to shoot at you. This will reveal a button. Body slam it, and the button will activate some kind of shower above Dingddile what will distract him. Then, smack him down by spinning or sliding against him. After that, he will go down. Use his flamethrower and spin at the same time. You must double jump above the flame ray to avoid it. After that, he will stand, shoot, and spin at the same time. Just duck until he stops. Then, run around Dingodile; he is going to make a spinning fire wall. Go to a mark and do what was done before. Dingodile is now going to do the same thing as before, only he is going to switch stand often -- stay focused. After that, he will use his firewall again. However, this time he will also switch directions. He will now use his fireballs as done at the beginning. After that, go to another marked spot and let Dingodile open it. Body slam on the button and make the final touch to Dingodile.

While fighting Madamme Amberly, Cortex will have unlimited ammunition. Avoid the electric beams from Amberly. You can see her aiming point when you are seeing small flames coming from the platform. When she hits it, it will expand and close it by shooting at it rapidly. After that, she will shoot school bells slowly to you. Shoot them all rapidly. After that, when Amberly turns around shoot at her engine. Repeat this a few times to defeat her.

First, avoid all rockets and his saw. Then, stand as close as you can by Mecha Bandicoot. When he wants to fire a big ball and shoots it, get away as fast as you can. If done correctly, the ball will not disappear. Slam it back to Mecha Bandicoot. Do this a few times to defeat him.