Cattatank

Cattatank (キャタタンク) is a tank-like enemy from Mega Man Zero 3 found on the Giant Elevator, Tretista Kelverian's stage. They appear when Zero jumps on the elevator. They move toward Zero with their shields to prevent damage but raise them to attack and punch him. It could possibly knock him off the elevator. It is easiest to drive them back until they fall off the edge.