most popular of his many alter-egos." In a less enthusiastic review, Spin writer Jon Caramanica claimed, "Sewn together with snippets from the Fantastic Four and Wildstyle, the album is a rambling exercise in musical therapy." He concluded, "But Doom ain't no joker: he’s merely fulfilling KMD's mythology ... six years too late." Accolades Legacy Operation: Doomsday has been heralded as an underground classic that established MF Doom's rank within the underground hip-hop scene during the early to mid-2000s. The album has had a vast, long-lasting influence on contemporary underground rap and independent hip-hop artists. Writing for streaming service Tidal, Dylan Green and Donna-Claire Chesman called the album, "a blueprint for all of independent rap." They cite the "dusty cartoon samples" of its lo-fi production, MF Doom's preference for keeping anonymous, his "stream-of-consciousness flows" and the self-sustainance ethos that led to self-producing the entire studio album himself as essential elements both driving Operation: Doomsday as well as serving a source of inspiration for countless artists worldwide. Track listing All tracks were written and produced by MF DOOM. Notes MF DOOM is credited as a feature on the tracks "Red and Gold" and "Who You Think I Am?" under the alias "King Ghidra". Personnel Credits are adapted from the albums' liner notes. 1999 Fondle 'Em Records release Personnel MF.Doom – production Additional personnel Daniel Dumile – executive production Percy Carey – executive production Big Lou – executive production Bobbito – executive production Artwork Doom – illustration Scotch 79 – art direction 2001 Sub Verse Music re-release Personnel Metal Fingers Doom – production D.J. Cucumber Slice – cuts , additional vocals Big Lou – co-production X-Ray da Mindbenda – co-production Pebbles the Invisible Girl – additional vocals Ill-Clown – co-production Additional personnel Metal Fingers Doom – mixing MF Doom – executive production MF Grimm – executive production Big Lou – executive production Bobbito – executive production Notes References External links 1999 debut albums MF Doom albums Albums produced by MF Doom