Hoppy's attack is similar to Haruko's in Fooly Cooly (episode 6/FLClimax).
While debatable, Garnet removing her weighted hair could also be a reference to Rock Lee's battle with Gaara from Naruto, where Lee removed the weights from under his legwarmers to increase his speed. in Dragon Ball Z, who wears weighted headgear and shoulder pads.
Garnet removing her weighted hair is a reference to Piccolo Jr.
Ringo's transformation also shares the same colors and characteristics of the Sailor Scouts from Sailor Moon.
Ringo's transformation bears similarities to that of Kars from JoJo's Bizarre Adventure, involving the use of a red stone applied to the user's upper head.
Garnet's final move also bears a resemblance to Mazinger's Rocket-Punch.
According to Jeff Liu, a storyboard artist on Steven Universe who created some animated sequences of " Garnet's Universe", Garnet's final move was inspired by Tengen Toppa Gurren Lagann.
At the end of " House Guest", there is a Sailor Moon volume in Steven's drawer.
Steven and the main character, Tiger, are both wrestling characters whose stage identities are bad guys and later become heroes.
Steven's wrestling identity could be a reference to Tiger Mask, a Japanese masked wrestler from the self-titled manga/anime Tiger Mask.
The Classroom Gems shorts bear a striking resemblance to the science lessons at the end of each episode of the Gainax anime Gunbuster.
In another reference to the same anime, the way Lion summons Rose's Sword in " Lion 2: The Movie" is similar to how the character Anthy summons the Sword of Dios.
Furthermore, the sky arena in " Sworn to the Sword" is reminiscent of the dueling arena in the same show.
Pearl's battle with Holo-Pearl has multiple fight sequences identical to ones from the anime Revolutionary Girl Utena.