Collection: Marvel vs. Capcom

According to a Capcom Development report, the reason why the Marvel vs. Capcom series originally came to be was because Marvel wanted to introduce it's character to a Japanese audience.

According to their respective profiles in the Street Fighter V character guide, Mecha Zangief's body and Shadow Lady's Miracle Drill are covered in a substance know as 'L. Ceramical Titanium'. This is a reference to the Ceramical Titanium (know as Ceratanium in the English version) from the Mega Man series.

According to former series planner Atsushi "Tomichin" Tomita, the reason why earlier games were lacking when it came to alternate color palette variety was due to each palette needing Marvel's approval. During the development of X-Men: Children of the Atom, the only alternate palettes approved were minor variations of the 1P palette. Marvel loosened their restrictions over time however, and by the time X-Men vs. Street Fighter released, the team at Capcom were allowed to use completely different colors.