Toxic Waste

Bad news: We are in Pinstripe's power plant, and his henchmen don't let you pass easily! - Level description

Toxic Waste is the twenty-first level (including boss fights) and is the fourth level of the third island in the original Crash Bandicoot game. As the name suggests, it is full of toxic waste and is the only type of level to take use a lot of it. Pinstripe's henchmen throw barrels of toxic waste to stop Crash. Some barrels just roll while others bounce. It is considered to be one of the hardest levels in the game. The blue gem is obtained here for breaking every crate.

Trivia

 * It is possible that this level is a parody of the video game Donkey Kong since it involves Crash jumping over barrels.
 * The barrels thrown in the level make an appearance on a Crash Team Racing track called "N. Gin Labs"
 * Similar barrels also appear in the sewer levels of Crash Bandicoot 2: Cortex Strikes Back.