Steven Universe: Growing Pains Season 6, Ep 14
Steven sees a doctor
Steven Universe: Lars' Head Season 5, Ep 4
Lars gains new powers.
Steven Universe: Storm in the Room Season 4, Ep 17
Steven spends some time thinking about his mom.
Steven Universe: The New Crystal Gems Season 4, Ep 16
Connie, Peridot, and Lapis fill in for the Crystal Gems (and Greg).
Steven Universe: Steven's Birthday Season 2, Ep 26
Steven's unusual hybrid biology causes him some problems when Connie visits him at the barn for his birthday.
Steven Universe: We Need to Talk Season 2, Ep 12
Greg tells Steven and Connie how he learned about Gem fusion.