Editing Nintendo e-Reader (section)

===''Mega Man Battle Network'' and ''Mega Man Zero 3'' cards===
The Japanese ''[[Mega Man]]'' games for GBA used Card Reader e+ cards to customize their game with the e-Reader +. The cards caused various effects as, such as Base HP, Abilities, Buster Changes, Charge Shot Modifications, B+ Back Abilities. There are even Item Cards which can give out sets of Battle Chips, Sub Chips, BugFrags, Zenny, and even Navi Customizer Programs (only introduced in ''[[Mega Man Battle Network 6]]'' Modification Card Part 1 & ''Battle Network 6'' Modification Card Part 2). They could also cause negative effects ('Bugs') to happen, causing such effects as causing Mega Man to lose health and move the wrong way, or causing the player to be unable to control it. As for the ''[[Mega Man Zero 3]]'' cards, they change the Resistance Base and add an overhaul of new things to it as well as Weapon Upgrades and Bullet Appearances to make an actual Buster Shot look like a real bullet that an actual gun fires.

The only way to gain the cards' effects in the English versions is through various cheating devices, such as [[Code Breaker]], [[Action Replay]] and [[GameShark]] (although in ''Battle Network 6'' all e-Reader content was removed from the European and American versions, and can no longer be accessed). The ''[[Mega Man Zero Collection]]'', ''[[Mega Man Zero/ZX Legacy Collection]]'', and ''[[Mega Man Battle Network Legacy Collection]]'' releases include the e-Reader bonuses for ''Mega Man Zero 3'' and ''Battle Network 4''–''6'' as unlockables, marking the first time they have been legitimately accessible outside of Japan.<ref>{{Cite web |url=https://www.destructoid.com/reviews/review-mega-man-zero-collection/ |title=Review: Mega Man Zero Collection |access-date=2023-06-13 |archive-date=2023-03-10 |archive-url=https://web.archive.org/web/20230310185625/https://www.destructoid.com/reviews/review-mega-man-zero-collection/ |url-status=live |first=Jonathan |last=Holmes |date=July 10, 2010}}</ref><ref>{{Cite web |url=https://www.nintendolife.com/news/2019/10/modification_cards_designed_for_nintendos_e-reader_return_in_the_mega_man_zerozx_legacy_collection|title = Modification Cards Designed for Nintendo's e-Reader Return in the Mega Man Zero/ZX Legacy Collection|date = 25 October 2019|access-date = 25 June 2021|archive-date = 25 June 2021|archive-url = https://web.archive.org/web/20210625202556/https://www.nintendolife.com/news/2019/10/modification_cards_designed_for_nintendos_e-reader_return_in_the_mega_man_zerozx_legacy_collection|url-status = live |first=Liam |last=Doolan}}</ref><ref>{{cite web |url=https://www.ign.com/videos/mega-man-battle-network-legacy-collection-trailer-march-capcom-spotlight |title=Mega Man Battle Network Legacy Collection Trailer {{!}} March Capcom Spotlight |work=[[IGN]] |date=March 9, 2023}}</ref>