 He praises the music's "evocation of the cold, desolate expanses of the Moon", describing it as "impressive".Andrew Pixley and Julie Rogers of "Starburst" magazine consider the "rather nasty karate blow" that Blue lands on Orson during the escape from Lunarville 7 to be one of the series' more violent moments.The British Board of Film Classification certifies the episode U, noting that it contains one "mild" instance of violence.