Mega Man X
You've finally met up with Sigma, beaten his dog Velgauder, beaten his human form, and his final form, consisting of his head attached to a giant machine in the background. Upon defeat, his head detaches and falls to the ground...

Sigma is surprised at X's power to break down his Reploid army. X teleports out of the area to a cliff, where Sigma's floating island fortress is seen plunging into the water, promptly exploding...

X is left to ponder what's to come in the future...

X runs down a highway, as bosses, subbosses, and your ally Zero flash on the screen...

The cast screen credits you as Mega Man, and Capcom thanks you for playing...

Certainly, you didn't believe you'd only be playing one Mega Man X game?