Nintendo Power

Nintendo Power is a monthly magazine that was published by Nintendo of America until issue #222 when its publisher changed to Future US. It includes letters from fans, game strategy, previews, cheat codes and reviews along with various special features month to month. Over a dozen Metroid posters have been included with them since Issue #2.

Issues with Metroid related covers

 * #031 (December 1991): Metroid II: Return of Samus
 * #060 (May 1994): Super Metroid
 * #119 (April 1999): Beetle Adventure Racing (Pictured a sticker of Super Smash Bros. characters, including Samus Aran)
 * #151 (December 2001): Super Smash Bros. Melee (Did not picture Samus)
 * #158 (July 2002): E3 2002 (An outline of Samus was pictured along with other video game characters)
 * #162 (November 2002): Metroid Prime
 * #163 (December 2002): Metroid Fusion
 * #186 (December 2004): Metroid Prime 2: Echoes
 * #219 (September 2007): Metroid Prime 3: Corruption

Walkthroughs

 * 29 (October 1991): Featured an eight-page walkthrough of Metroid that showed Armorless Samus, short descriptions of items and enemies, screenshots, maps, extra tips and a small insert about the Secret Worlds as well. Also featured a preview for Metroid II.
 * 31 (December 1991): A small, eleven page walkthrough of Metroid II with numerous maps of each area.
 * 37 (June 1992): A larger, eight page walkthrough for Metroid II with better maps and descriptions as well as advice.
 * 44 (January 1993): While not containing a walkthrough it showed a tutorial on how to recreate the Metroid graphics in Mario Paint.
 * 59 (April 1994): 5 page preview for Super Metroid showcasing Samus' new moves and new areas. Note that the Shinespark and Wall Jump were called Speed Booster Blast and Touch & Go due to the lack of an official name at the time.
 * 60 (May 1994): A well laid out examination of Crateria, Brinstar and Norfair in Super Metroid going up to the battle with Crocomire.
 * 95 (April 1997): Complete "time trial" walkthrough of Super Metroid which, if completed successfully, earns the best ending.
 * 163 (December 2002): Seven page mini walkthrough of Metroid Fusion which goes up to collecting the Varia Suit in Sector 6.

Metroid Comics
Two Metroid-related comic series were ran in Nintendo Power. One was the Super Metroid series that ran from issues 57-61. The other was the Metroid Prime series that began in issue 161 and ran for only two or three issues.

Blood of the Chozo
Blood of the Chozo was an interactive online Metroid story run by Nintendo Power over the course of three months. It was later summarized in an issue of the magazine.