Dr. Light hugging Mega in the Bad Future episode. Megaman had been gone for about 30 years due to a time travel mishap, and the city had been taken over by Dr. Wily. Having found that Roll and Dr. Light were imprisoned, he broke in to break them out. Light, who had been scribbling equations on the cell walls, turns at the sound of his voice.
Mamoru's scenario in the third game. If you didn't feel touched by Megaman releasing his energy into the hospital system to restart Mamoru's surgery then you have no soul.
