Card Trivia:Scarr, Scout of Dark World
- This monster appears in the artwork of "One for One", "The Forces of Darkness", and "Thousand Buster".
- This card's name is the "Dark World" color pun for the word scarlet.
- This card's Chinese name, 猩紅卡, is a combination of 猩紅 ("scarlet") and 卡 kǎ (transcription of the phoneme sequence /kɑː/ as in scarlet).
- This card and "Cobal, Excavator of Dark World" are the two only "Dark World" monsters whose effect doesn't involve discarding cards or have their effects activated when discarded, excluding "Clorless, Chaos King of Dark World" as its effects were never shown in the anime.