Mykola Yeriomin: [multilinguality] title of the series is a mix of English and Latin, while episode was released in both English and Russian with main titles being English in both versions. Also, Chinese and English are featured on packaging of a construction toy.
Mykola Yeriomin: [Sudden Actors] Ilya Sinelnikov (briefly seen in the background in some shots) and Mykola Rudenko (whose voice was accidentally recorded during some of the narration recording sessions) are credited as such.
Mykola Yeriomin: [Askold Tutylopydirskiy] fake trailer "The Crab with a Flamethrower" is attributed to "a film by Askold Tutylopydirskiy".
Mykola Yeriomin: [narrator] The Egg Collector and The Underconstructor address the audience by means of narration.