This edition of Madden NFL 2005 had all the features of the regular version, plus bonus content, including: Playable classic versions of Madden from
Madden NFL 2005 (Collector's Edition) - Playstation 2
Madden NFL 2005: Championship Edition - IGN
Madden NFL 2005 Collector's Edition (Sony PlayStation 2, 2004) Complete
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Madden NFL 2005 (GameCube) Review - Page 1 - Cubed3
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Madden NFL 2005 Review - GameSpot