Crash Bandicoot 100% - Part 17: Sunset Vista (Normal Gem & Key)

Quite a bit harder than The Lost City, but most of it comes from trying to get the Key. You'll have to get all three Cortex symbols to access his bonus stage. You'll have to time jumps on lizard heads and jump into the background to get them. The bonus stage itself involves jumping on TNTs and quickly spin jumping boxes to clear a path. Probably harder than the level itself to be honest. You NEED to reach the other side and nab the key off Cortex in order to get 100% in the game, although the boxes don't count towards the gem total. Getting the Gem and Key in one sitting may seem daunting, but you need to open the boxes containing the Cortex symbols to get 100% boxes anyway.