Game Credits
For a new credits-browsing experience, visit our credits database (work in progress).

As listed in the games unless otherwise noted.

Anyone willing and able to contribute credits should please read this thread in our message board.

Super Paper Mario, Nintendo Puzzle Collection (YC, Dr. Mario), Mario Power Tennis, Wario World, Doki Doki Panic, Wario's Woods (SNES), and Mario Teaches Typing (Mac) from nintendoexpert89.
Mario Excitebike 4 name translation help from kdh.
Mario vs. DK2, Super Princess Peach (Japan), Mario Kart DS, Mario Golf: Toadstool Tour, WarioWare, Inc.: Mega Party Game$, Super Mario 64 DS, WarioWare: Touched!, and WarioWare: Twisted! from Luigison.
DDR:MM (manual) from Sunbun.
YT&G (manual) from Fifth.
MParty7 (manual) from Aarom11.
MParty3 (Europe) from TigerTjäder.
MT:PT (manual) from Hirocon.
Yoshi's Cookie (NES), Game & Watch Gallery 2+3, and Tetris Attack (GB) from AllTimePlumber.