On March 2018, content from Rockman X Mega Mission 4 was released as part of a package named Rockman X & Rockman X Mega Mission Selection Box (ロックマンX＆ロックマンXメガミッション セレクションボックス), which celebrates the 30th anniversary of the Mega Man franchise, sold exclusively through Premium Bandai. The box contains 159 cards (126 normal and 33 foil cards) that are reprints of the cards from Rockman X and Rockman X Mega Mission 1-3, 9 new foil cards (6 from Mega Mission 4 and 3 special), a binder, and a booklet.
The booklet contains a summary of the Rockman X Mega Mission storyline, details from the Mega Mission 4 story, artwork and concepts from the cancelled Mega Mission 4, the Mega Armor series, and the six entries from the armor design contest (the winner being illustrated by Iwamoto Yoshihiro) and a two page manga by Iwamoto Yoshihiro titled Carddass Rockman X Mega Mission Fukkatsu Kinen Special Comic (カードダスロックマンXメガミッション復活記念SPECIALコミック) showing X using several armors from Mega Man X5 to Mega Man X8.
(NOTE: Although the cards use the original names from Japan, this summary will use the English versions for the sake of clarity.)
After lending his power to X to defeat Σ Limited, Return iX revived in secrecy and obtained the Σ Chip. When Return iX discovered a Power Up Capsule, he merged the Limited with it to power up himself, becoming G-iX (Grow iX). Also, he used the capsule and the remains of four destroyed Maverick bosses to regenerate them, and also to create two Limit Reploids subordinate to him, Himmel and Berg. With this, Grow iX set out with his army for the final battle against X.
X is attacked by Grow iX's army while testing a new machine named Gazelle. He fights back alongside his partner Zero. The duo discovers that GX is behind the attack, and the Power Up Capsule began to go out of control, becoming a Mother Limited.
In the debris of the Grow iX army, X found an armor that he uses to challenge the Mother Limited, the Grow Up Armor. Knowing that he can't win against X only with the Limited's power, GX decides to absorb Mother Limited, becoming Doppler iX. With this, Zero suddenly decides to try a suicide bombing. How will this fight end...!?
This list includes only the new cards from Rockman X & Rockman X Mega Mission Selection Box.
|No.||Front name||Back name||Details|
|EX01||Rockman X||X (||Rockman X Mega Mission 4|
|EX02||Grow X||Rockman X Mega Mission 4|
|EX03||Rockman X||X (Ride Chaser Gazelle Custom)||Rockman X Mega Mission 4|
X with the Ride Chaser Gazelle Custom, which is equipped with the Gazelle Buster and can transform into the Ride Armor Gazelle Custom.
|EX04||Zero||Zero (Ride Armor Gazelle Custom)||Rockman X Mega Mission 4|
Zero with the Ride Armor Gazelle Custom, which is equipped with a beam sword named Gazelle Saber and can transform into the Ride Chaser Gazelle Custom.
|EX05||Himmel||Himmel||Rockman X Mega Mission 4|
An aerial Reploid working for GX. He has the Storm Tornado and Sonic Slicer from two of X's old opponents.
|EX06||Berg||Berg||Rockman X Mega Mission 4|
A Reploid working for GX that specializes in land battles. He has the Flame Knuckle and Shining Claw from two of X's previous opponents.
|EX07||Rockman X||X (G.B.F. Armor)||Rockman X Special|
X with the G.B.F. Armor.
|EX08||Rockman X||X (Falcon Armor)||Rockman X Special|
X illustration by Iwamoto Yoshihiro.
|EX09||Zero||Zero||Rockman X Special|
Zero illustration by Iwamoto Yoshihiro.
A memo from the Rockman X & Rockman X Mega Mission Selection Box booklet shows how the Rockman X Mega Mission 4 cards were planned to be organized:
|3||X + Zero (Pair illustration)|
|4||Grow X||iX's power up|
|5||X + Zero + Grow X (Assembly)|
|6||Story 1||Dr. Light's capsule ___!!|
|7||Story 2||Capsule ____|
|8||Acid Seaforce R ("L")|
|9||Cristar Mymine R|
|10||Frozen Buffalio R|
|11||Screw Masaider R|
|12||Rebirth! Grow X Army||Grow X + officers + 4 big bosses|
|13||Officer Repliroid (A)||Replimachine __ type|
|14||Officer Repliroid (B)|
|18||X + Zero (Gazelle bike / robo)|