Sources:
- Sonic Origins (2022)
- Sonic Adventure (1998)
- Sonic the Hedgehog 2: Mega Drive Koushiki Guide Book (1992)
- Sonic Shogakukan Manga: Bessatsu CoroCoro Special (1992) -- translation here: https://imgur.com/a/Dia8h3k
- Adventures of Sonic the Hedgehog: "Tails's New Home" (1993)
- Sonic the Comic: "A Tale of Tails" (1994)
- Archie Sonic Super Specials: "Eve of Destruction" (1999)
- Sonic X: "Huge Battle on the Savanna!" (2003)
- Sonic X 4kidz Dub: "The Dam Scam" (2004)
- Archie Sonic the Hedgehog: "Keys to Victory" (2016)
- OK K.O.! Let's Be Heroes: "Let's Meet Sonic" (2019)
- Sonic the Hedgehog 2 (2022)
- Gif: TailsTube Episode #1

Music:
- Koushiki Guide Book: "Emerald Hill Zone" (Sonic the Hedgehog 2)
- Shogakukan: "Sky Chase Zone" (Sonic the Hedgehog 2)
- Sonic the Comic: "Chrome Gadget" (Sonic the Hedgehog 3)
- Archie Pre-SGW: "Casino Night Zone" (Sonic Pocket Adventure"
- Archie Post-SGW: "100m Freestyle Swimming" (Mario and Sonic 2016)
- Credits: "Intro" (Tails Skypatrol)

107: Limitations on Exclusive Rights - Fair Use:

Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include—
(1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
(2) the nature of the copyrighted work;
(3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
(4) the effect of the use upon the potential market for or value of the copyrighted work.
The fact that a work is unpublished shall not itself bar a finding of fair use if such finding is made upon consideration of all the above factors.
(Pub. L. 94–553, title I, § 101, Oct. 19, 1976, 90 Stat. 2546; Pub. L. 101–650, title VI, § 607, Dec. 1, 1990, 104 Stat. 5132; Pub. L. 102–492, Oct. 24, 1992, 106 Stat. 3145.)