Mega Man Crossover Final Battle by tAll3ShyguySkullLand

So a winged Shadow is the final boss of this mashup, it seems. Interesting note about the cast of characters below, it seems to be the cast of Super Mario Crossover, though with a different Mario sprite, and also the addition of Kirby. Interestingly, I checked out TheExplodingRabbit to see if Kirby was added as a new character. No sign of Kirby... but there was a trailer announcing a new version coming with the addition of Sophia the 3rd from Blaster Master!