Super Smash Bros. for Wii U/3DS
Two images of the 3DS version of Mega Man in the upcoming Super Smash Bros. have appeared on the game's official website.
He looks just about the same as he does in the Wii U version of the game, only with the ever-present black outline that comes standard with cel-shading.
Super Smash Bros. is coming to Wii U and 3DS next year, and although their cross-compatibility seems limited, it looks like it will exist in some form. For more on the new Smash Bros. check out this gameplay walkthrough video with the game's director.