You are the future of the Mega Man franchise, expanding its lore and story, since Capcom doesn't impose many obstacles to its development and Mega Man is Capcom's mascot.
Just like Mario, Super Mario Bros.: The Lost Levels (Super Mario Bros. 2 in Japan), the second original game for Japan, seems more like a DLC or a more difficult expansion of the first game than a true sequel. This is why Nintendo of America rejected it and replaced it with Yume Kojo Doki Doki Panic. Interestingly, that game was originally intended to be a Mario game. From its planning stages, it was envisioned as a cooperative side-scrolling platformer, but the idea didn't appeal to Shigeru Miyamoto, who suggested adding a horizontal platforming element. At the time, Nintendo was leveraging an alliance with the Japanese network Fuji TV for various projects, one of which was promoting their Yume Kojo '87 event. Thus, the game that was originally intended to be a Mario game ended up being the game they would make for the Fuji TV event. When Nintendo of America saw this, they decided to choose it as the sequel to the first Mario game for the Western market, since it had elements that were very much like Mario's. So, in theory, the American Super Mario Bros. 2 IS REALLY what the game was originally going to be. From its inception, it was intended to be a Mario game.
Sonic CD, developed at SEGA Japan and envisioned as a potential sequel to the first game, was simultaneously being developed at the SEGA Technical Institute in America, where Sonic 2 was being programmed (though with assistance from Japanese artists, designers, and directors from SEGA Japan, such as Yuji Naka, who traveled to America to help). And with Pac-Man, the game was created by Namco, and when the first game was released, it was a success in Japan. But in America, it was a much bigger phenomenon (much bigger than in Japan; Pac-Man isn't really as popular or iconic in Japan as it is in the West). Midway, who distributed the game for America, wanted to continue capitalizing on the Pac-Man phenomenon there and saw a hack of the game called "Crazy Otto" made by a group of young people at a technology fair. Seeing that it was well-made and more fun than the original Pac-Man, Midway hired them to make an official game, "Ms. Pac-Man," without Namco's knowledge. Meanwhile, Namco released the true sequel to the first game, called "Super Pac-Man," which is somewhat different from the original. While Midway continued to take advantage of having the Pac-Man rights for America, they kept making sequels "unauthorized by Namco," games like Jr. Pac-Man, Baby Pac-Man, and Professor Pac-Man. When Namco found out about this, they severed all ties with Midway and I'm removing the rights to the Pac-Man family, because at the end of the day, those characters weren't created by Namco. That's why current Pac-Man games have modified the Pac-Man family so much, even changing their names, since ultimately, those characters don't belong to Namco.
And now Mario, Sonic, Mega Man, and Pac-Man are together in Smash. Now they're missing Crash Bandicoot, who was created by Naughty Dog and Universal. He competed with Mario and Sonic in the console wars, has a racing game called "Crash Team Racing" like Team Sonic Racing and Mario Kart, and Traveler's Tales (a subsidiary of Warner Bros. Games) has developed Crash Bandicoot and Sonic the Hedgehog games. Universal should buy a part of Activision Blizzard and reclaim Crash Bandicoot, Spyro, and other IPs that belonged to Vivendi Universal Games. They should also buy Skylanders, Diablo, and Warcraft, and perhaps even buy Warner Bros. or merge with them for various reasons. Crash Bandicoot would be a great representative. from Universal and Warner Bros. in Super Smash Bros and would represent the alliance of Nintendo with Universal and Warner Bros.