This page is no longer being maintained.
Only cases of plausible cryptomnesia are listed here, not self-plagiarism, authorized tributes, or use of public-domain material. (For example, comparisons between Mega Man 9 and 10 music would be unsuitable because they are likely self-plagiarism.)
The word "citations" below usually refers to YouTube, not to a reliable source. A valid YouTube citation must consist of a single video demonstrating (1) the two songs separately with critical commentary and/or (2) a mashup of the two songs. A separate video for each song is not acceptable as a citation; if only separate videos are available, then the entry goes into the appropriate "Original research" section.
TODO: Study MediaWiki table formatting syntax. In the meantime, video-game-related entries with known artist will be formatted as Artist - Game Title - Song Title
, and entries with unknown artist are formatted as Game Title - Song Title
.
TODO: Use any reliable sources necessary to look up artist names