"3D Mega Man" is a screamer video published on YouTube in 2010 by the user boyshark46.
The video shows a 3D model of Mega Man (in his original 8-bit design) rotating on a black background. This goes on for 23 seconds. After that, a close-up of Chucky (from Child's Play) accompanied by a woman screaming is shown. The video cuts to black as you can hear an evil laughter before the video ends.
NOTE: The following video contains a screamer.