The first Mega Man game on the NES has my favorite box art for any video game. Instead of attempting to explain how weird/terrible it is, I’ll let you see for yourself:
Nothing about the above box art resembles the game, which looks like this:
When Capcom released Mega Man 9 and 10 as an 8-bit homage for various platforms in 2008 and 2010, they went for full nostalgia and embraced their original terrible box art that debuted the Mega Man franchise.
Recently, fans were upset that Mega Man did not appear as a playable character in Marvel vs. Capcom 3. Capcom addressed these concerns by making sure he was a playable character in Capcom vs. Tekken. Unfortuantely, it was this Mega Man:
Needless to say, a lot of diehard Mega Man fans were not nearly as amused as I was.
Super Memory Bros. 
Wow, that Capcom/Tekken Mega Man is a funny but a definite disappointment for Mega Man fans. Awesome post, I am a big Mega Man dork. This publishing company called Udon puts out these Capcom related tribute art books(I own most of them), where fans submit their own interpretations of Capcom properties. They have a Mega Man one that is pretty sweet here is the link: http://www.udonstore.com/Mega-Man-Tribute-HC-Udon-Store-Exclusive-p/mega-man-tribute-exclusive-hc.htm
This is fantastic. Thanks for the link!