Crash Bandicoot 3: Warped Tips

Colored Gems
Yellow: First, get 10 relics. Then, enter level 27, a secret part to Level 7, Hang'em High. Make it to the end of the path to get the gem.
Red: Go to Level 12, Deep Trouble. At the end, hit the ! box and backtrack. The outline box at the fork should now be a TNT. Touch it to set it on it's 3 second fuse. It will clear the path once it explodes. Make it to the end and snag the red.
Purple: Go to Level 13, High Time. Do not die. If you didn't die, about 1/2 way through the level you will see a platform with a skull and crossbones on it. Make it to the end of the path and grab the gem.
Blue: VERY HARD. Go to Lavel 20, Tomb. Same thing as the purple gem. This time, the path is much harder.
Green: Pretty easy. Go to Level 23, Flaming Passion. Do the same thing as you did for the purple and blue gems and you should be fine.
Now that you have all of the colored gems, go to Level 25, Bug Lite. Jump on the blue gem you see in the level. Complete all of the gem paths and you have a well-earned clear gem.