The Shieldsman (also known as Incognito/Peeping Doom in the SNES/PS version) is an enemy in Chrono Trigger that appears in the Black Omen. It shares similar sprites, albeit with a palette swap, with Sentry. They are small, black spherical beings that hide behind relatively big shields.
Battle and Strategy[]
When hidden behind their shields, their defense is really high, so it's strategical to wait until they peek out to take a look at the party and attack them then, because their defense lowers significantly. Otherwise the player will be dealing very few damage.