Additionally, Kool Keith has likewise secured himself as an independent craftsman and has delivered numerous collections and tracks including Dr. Octagonecologyst, Spankmaster, Black Elvis/Lost in Space, Matthew, Love and Danger, The Return of Dr. Octagon, Feature Magnetic, Keith, Tashan Dorrsett, Computer Technology, Dr. Dooom 2, Demolition Crash, Nogatco Rd., Moosebumps: An Exploration Into Modern Day Horripilation, El Dorado Driven, Controller of Trap, Saks fifth Ave, No Awareness, I Don’t Believe You, Plastic World, 3000, Break U Off/Takin’ It Back, Gorilla Driving a Pickup Truck, Trees, Aliens, Don’t Crush It, Blue Flowers, Earth People, and First Come, First Served.

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— Kool Keith (@UltraMan7000) January 29, 2022

With Ultramagnetic MCs, he delivered the gathering’s introduction studio collection Critical Beatdown on October 4, 1988, through Next Plateau Records and it included melodies like Moe Luv’s Theme, Watch Me Now, When I Burn, Kool Keith Housing Things, Break North, Give the Drummer Some, and Ain’t It Good to You. It crested at #57 on the US Billboard Top Black Albums graph.

On May 7, 1996, he delivered his introduction solo studio collection Dr. Octagonecologyst and it presented the personality of Dr. Octagon, a murderous, extraterrestrial, time-traveling gynecologist and specialist.

Kool Keith’s fifth studio collection Matthew was delivered on July 25, 2000, and it crested at #36 on the US Independent Albums (Billboard) graph and at #47 on the US Heatseekers Albums (Billboard) diagram.

— Kool Keith (@UltraMan7000) January 30, 2022

He professed to have “developed horrorcore” in a 2007 meeting. As to connection among himself and his different stage characters, Keith has said, “I don’t feel like I’m an individual any longer.”

His seventeenth independent studio collection Keith was delivered on July 12, 2019, and Paul Simpson of AllMusic stated “Keith is just another steady, agreeable collection from one of rap’s actual legends.”