Peterchy

Peterchy (ペターキー) is a walking eye reconnaissance robot from Mega Man 3. They continuously walk forward to attack. They appear in Magnet Man, Spark Man and Shadow Man's stages.

They appear in Magnet Man's Stage in Mega Man II and Hyper Storm H's Stage in Mega Man: The Wily Wars.

In Super Adventure Rockman, a Peterchy sits on top of the celling and reveals Rockman's location.

Hits Data Chart
Amount of shots/hits from Special Weapons it takes to destroy a Peterchy.

Petaforth
Petaforth (ペタフォース) is an upgrade of Peterchy in Mega Man 7. They occupy particular platforms and walk back and forth across them.

Archie Comics
The Peterchy have a brief cameo in Issue 43, where some were sucked into a reversed dynamo, causing them to detonate and presumably damage the dynamo while Magnet Man is monologuing to himself.

Similar enemies

 * Petatria