Shoud

Shoud (封印核 シャウド Fūin Kaku Shaudo?, lit. "Sealed Core Shoud") is an enemy in Contra.

Gameplay Guide
Shoud is a big core with a blinking light on it's center that is affixed on a wall that divides the many sections of a pseudo-3D stage in the game. It is initially found concealed behind an armored panel, but shortly afterward it will reveal itself, being exposed to enemy fire. Each Shoud must be destroyed in order to process the stage. If one is not destroyed in time, Shoud will begin shooting bullets at the player.