The Piko Piko Hammer, also called the Piko Hammer or Love Hammer, is an object in the Sonic the Hedgehog series. It is a large yellow and red hammer and Amy Rose's signature weapon, which she uses as a melee weapon and to perform special techniques.
Despite its colorful and innocent appearance, the Piko Piko Hammer is a powerful melee weapon, capable of dealing incredible damage with seemingly little effort. It can effortlessly smash whole robots with a single swing, yet is graceful enough to be used for high-speed techniques. It can likewise sent foes flying with a single hit or crush them with devastating force. At as a testament to its might, even fearless individuals like Sonic and Knucklesdread getting a beating from the Piko Piko Hammer. When swung, it tends to leave a trail of pink hearts.
Mixed with Amy's abilities, the Piko Piko Hammer can be used for many applications beside combat. When swung around fast enough and with the right amount of force, the Piko Piko Hammer can function as a propeller for flight, launch powerful shockwaves that can steer up miniature tornados or unleash massive releases of energy, and provide boosts for different acrobatic maneuvers.
When not using it, Amy keeps the Piko Piko Hammer in a hiding spot that remains unknown to this day, but she can pull it out of nowhere on a moment's notice.