A Ghastly Voyage

"According to my paranormal scanner, that flowing soup is really highly charged ectoplasm! It's just got to be the source of power for those headstone generators!"

- Bentley, referring to the ghost production

"A Ghastly Voyage" was a job in "Vicious Voodoo" of Sly Cooper and the Thievius Raccoonus.

Synopsis
Sly hopped onto a hover blaster and rode through a large swampy area filled with ghost rats spawning from headstones. By using the vehicle's cannon, he not only had to blast his way past several enemies but also several barriers that blocked the passage. As Sly made it halfway through the location, Bentley radioed him, informing him that the flowing soup that was seen in the ghost production facility happened to be highly charged ectoplasm, which he believed to be the source of power for the ghost generators.