THE REN AND STIMPY SHOW! Stimpy's Invention review for Sega Genesis. Classic Game Room reviews THE REN & STIMPY SHOW: STIMPY'S INVENTION for Sega Genesis released in 1993 which is based on the awesome, Billy West voiced Nickelodeon TV show from the early 90's! This Ren and Stimpy Show video game is a cartoony 2D side scrolling platformer where players can control either Ren or Stimpy, the characters from the Nickelodeon cartoon show. CGR Ren & Stimpy Show Stimpy's Invention video review shows Ren and Stimpy Sega Genesis gameplay in HD.