Cheat Code Central: Pop'N Music 2

Cheats and hints for the Dreamcast game.
http://www.cheatcc.com/dc/popnm2.html

GameFAQs: Pop'n Music 2

Includes game information, FAQs, game guides, cheats, hints, and a message board for the PlayStation version of the game.
http://www.gamefaqs.com/console/psx/data/24609.html

GameFAQs: Pop'n Music

Includes title and release data, game guides and FAQs, reviews, cheats and hints, and a discussion board for the PlayStation game.
http://www.gamefaqs.com/console/psx/data/23368.html

Maicrostyle

Offers videos for download.
http://www.gamescoop.nl/playground/maicrostyle/maicrostyle.asp