“Come fly with me, let's fly, let's fly away! Press Special to thrust.”
Available at start.
Pressing Special activates the jet pack. While the goat can indeed use it to fly through the air, it is almost completely uncontrollable, making it more useful for entertainment value than for reaching specific locations.
Combining the Jet Pack with Devil Goat causes it to become more powerful and more prone to bugs, such as invisibility or glitching through the map.
Combining it with anti gravity goat makes it have controllable flight.