"Factory Inspection" was first used in Kirby 64: The Crystal Shards, as the level theme for Factory Tour, the fourth stage on Shiver Star.
Remixes of the track have since appeared sporadically throughout the Kirby series. Kirby: Canvas Curse's take is used for the Mad Mechanism level. Kirby Planet Robobot's take (named "Studying the Power Plant") is used for the third Gigabyte Grounds stage.
There are currently 15 rips of "Factory Inspection" on the SiIvaGunner channel. Most involve the Kirby 64 version; there is also 1 rip of the Canvas Curse version, as well as 3 of the Planet Robobot version.