Flyingstump

The Flyingstump (otherwise called the Propellertree) is a form of defense that is built similar to that of Wheelbarrel. They fly above the heads of penguins and well send a small zap to the penguin underneath the flyingstump, causing them to have the same side effects as the Wheelbarrel's.

Background
Invented by Metalmanager for the EPF, it was used to protect treasures that were deeply hidden in underground or in some cases, above ground locations.

Trivia

 * The only way to bypass it is when you enter the invisibility stage where you can move around. This means you can go undetected. Or, wait for it to go the opposite direction.