Did you buy all 3 versions? Physical or digital?
Yep, got all physical editions released bar the Amazon Exclusive release as that was just something Amazon threw together, as opposed to being a proper retail release:
PS4 and Xbox One editions (also pictured is a rare, small print run of a fan made 2D Mega Man Legends 3 Prologue demo that Capcom staffers helped with. Apparently it only had 100 copies made, not sure if that's true or not).
Both 3DS editions - Rockman Legacy Collection E Capcom exclusive that comes with Dr Wiy's diary (that has actual journal entries in it from the good doctor) as well as stickers and 6 alternate sleeves for the game (each sleeve features the original Famicom cover art from each of the 6 games on the collection.
The USA exclusive edition comes in one of the cheapest damn boxes I've ever seen, good luck getting one that isn't dented... It comes with a Gold Amiibo Mega Man (that unlocks 3DS exclusive challenges) and a few postcards featuring the characters in the 6 games (art on the post cards are really nice).