And I just bought a new raygun from the future
Just to come and shoot ya,
Em is coming for his fans stuck in the past version of his music. They need to move on before he ends them with his futuristic weapon—his current music. Note the double entendre of the “ray” in raygun, which could either mean a futuristic energy weapon-type ray gun or a “Ray J-gun” (see next annotation regarding Ray J).
Ray guns are ubiquitous in science fiction. They are used in the Call of Duty franchise, which Eminem has been partnered with for some time. (Survival is the music of the trailer for COD Ghost)
To help improve the meaning of these lyrics, visit “Rap God” by Eminem Lyrics and leave a comment on the lyrics box