"Blazing Entrails" is the fourth episode of Season 4 of The Ren & Stimpy Show.
Ren takes Stimpy to Dr. Brainchild when he starts acting dumber than usual. Dr. Brainchild makes Stimpy's body fifty times large, and Ren has to go inside Stimpy to save his brain from his ignorance gland (but not before getting beaten up himself).
- Blazing Entrails - Charlie Brissette, Bob Camp, Billy West [original composition] (title card)
- Peer Gynt - Anitra's Dance - Edvard Grieg (opening)
- Gounod: Funeral March of a Marionette - Lee Ashley [OGM] (breakfast)
- Lambs in Clover - Jack Strachey (Brainchild's mom answers the door)
- The Adventures of P.C.49 - Ronald Hanmer (Dr. Brainchild appears)
- Silent Scream (a) - Richard Harvey ("Yesssssss....")
- Frothblowers Anthem - Edrich Siebert (Dr. Brainchild blows up Stimpy)
- Queen's Aloha Oe - Kapono Beamer, Queen Lili'uokalani (Ren goes inside Stimpy)
- Smouldering Fury (a) - Trevor Duncan (Ren inside Stimpy, lighting a match to see)
- Honolulu Hula Band - George Elliott (after explosion)
- Metropolis - Jack Brown (subway train)
- Eastern Journey - Ronald Hanmer, Jack Beaver (Ren heads to the stomach)
- Custard Cakewalk - Sam Fonteyn (in the bar)
- Symphony #6 "Pathetique" 1st Mvt. - Peter Tchaikovsky, Fiachra Trench (Ren's in love)
- Sweet and Simple - Steve Race (Ren's living in the stomach with wife and children)
- Panic Patrol - Kenny Graham (Ren remembers the mission and heads for the pharynx)
- Flare-Up - Bobby Pagan (backwash)
- Escape - Hans Conzelmann, Delle Haensch (Ren in the ear)
- Menacing - Gerhard Trede ("Doc, I see what's wrong!")
- Escape - Hans Conzelmann, Delle Haensch ("Hey you big dope, let go of that little dope!")
- Savage Episode - Len Stevens (Ren getting beat up)
- Hold It - Ralph Dollimore (monkey telegram)
- Rossini: Overture from "William Tell" - Lee Ashley [OGM] (Stimpy deflates)
- Soapy Organ - Charlie Brissette [original composition] (organ music on TV)
- Valse Aux Champs-Elysees - Daniel Jean-Jeannin (ending)
- Dr. Brainchild and his mother are voiced by Bill Mumy and June Lockhart respectively.
- This is the first episode to be animated by the Australian company Mr. Big Cartoons.