This show mainly uses Hanna-Barbera (most heavily in Chris Savino-produced episodes), Warner Bros. (most heavily in seasons 1-2), The General Series 6000, Series 4000 and The Premiere Edition Volume 1 sound effects, along with Joel Valentine's own sound effects (in seasons 1-2, but some are used in seasons 3-4) and some Hacienda Post & Jeff Hutchins sound effects in Seasons 1-3; most Cartoon Trax Volume 1 sound effects used in the show are in Season 3-4.