Mega Legends


 * Not to be confused with the Mega Man Legends video game.

Mega Man Legends is Mega Man's Final Smash. Mega Man uses the Black Hole Bomb to catch the opponents, and then Mega Man X (Mega Man X), Geo Stelar and Omega-Xis (Mega Man Star Force), Mega Man Volnutt (Mega Man Legends) and MegaMan.EXE (Mega Man Battle Network) all appear alongside Mega Man. All of them then use their Mega Busters against the trapped opponents. The screen will focus for a split second on the character being hit, and then the cutscene will end as the character is blasted away.

Origin
The Black Hole Bomb is a weapon that Mega Man receives from Galaxy Man in Mega Man 9 for the Wii, Xbox, and PS3. It's possible that the origin of the rainbow-like laser is from the Mega Man anniversary images, in which Mega Man appears alongside his "co-stars". However, Mega Man didn't shoot the laser in his anniversary images. The rainbow laser may be a reference to two of the classic Mega Man's development names, "Rainbow Warrior Miracle Kid" and "The Battle Rainbow Rockman".

Trivia

 * It is interesting to note that the Black Hole Bomb which Mega Man uses in this Final Smash is the only weapon from the digital Mega Man titles (Mega Man 9 & 10) to appear so far.
 * It's possible that the name was chosen in reference to the game of the same name and its sequel, which Capcom infamously greenlit and almost immediately cancelled a third game for in 2011, resulting in fan outrage.
 * This is the first Final Smash that involves the user calling other characters to help him, before Pair Up and Chain Attack.