1. His birthday is 16th October, the same as Kirishima’s.
2. His height is 174cm, he likes fighting games, his favourite food is spinach, and his blood type is B.
3. Tetsutetsu’s hero name was misspelled in the original magazine release. It was written as ‘Real Steal’ instead of ‘Real Steel.’ He has been fixed in the subsequent volumes released.
4. Tetsutetsu and Snipe share the same English VA (David Wald).
5. Tetsutetsu’s surname is made up of the kanji for ‘iron’ (鉄 tetsu) and ‘clear, philosophy’ (哲 tetsu). His first name contains ‘pierce’ (徹 tetsu) and an archaic kanji (‘Archaic’ refers to a variety of a kanji, which is no longer in common use, that has since been simplified and designated a tōyō kanji/kanji for general use) for ‘iron’ (鐵 tetsu).