Shout Out / The Super Mario Adventures: Crossover Clash

Main series

• From episode 9: ^note For context, the gang are going to an arena, oddly named The Rice Fields.
  Rice Fields Guard: Welcome to The Rice Fields, motherfuckers!
• In the first season epilogue, Drone mentions a scene in The Movie of Show Within a Show Treasure Divers wherein a character breaks ice by singing. Surely enough, the video showing the ending of this movie recreates this scene to give some context to Drone's words.
• Two of the shows within a show on Opera TV include Cooking Cuties and Daffy and Her Dancing Daisies. ^note Or the creator's interpretations of the shows, at least.

Other videos

• A two-for-one: In The Incredible Caillou VS Boris The Teeth Guy, The Incredible Caillou summons uolliaC to use a Z-Move. The Z-Move's name? uolliaC's Magnum Opus.