Stanton Swihart of AllMusic described the album as "a wild, weird, instantly left-field rap masterpiece from one seriously bugged-out, innovative loner." Thomas Quinlan of Exclaim! stated that it "embraces the late '80s/early '90s of hip-hop, with old school beats and battle rhymes, while at the same time shaking hands with new school lyricism and space age effects." Nathan Rabin of The A.V. Club wrote, "One of the year's most promising debuts, Primitive Plus makes the beats of yesterday and the flows of today sound like the hip-hop of tomorrow."