The Hammer Attack (ハンマー攻撃 Hanmā Kōgeki?) is Amy Rose's signature attack. It first appeared in Sonic Adventure and has since then become Amy's primary offensive maneuver in the Sonic the Hedgehog series. It is a technique where the user attacks with the Piko Piko Hammer. It serves as the base for many of her other moves like the Spin Attack does for many other characters.
Unlike most other characters in the Sonic series, Amy often lacks the ability to perform the Spin Attack and its variations. To compensate for this, Amy instead uses her skills with her personal weapon, the Piko Piko Hammer, to attack her enemies. In the Sonic the Hedgehog series, the basic Hammer Attack is where Amy calls out her Piko Piko Hammer and whacks the opponent in front of her while sometimes leaving a trail of pink hearts. This is usually done in gameplay by tapping the Action button.
In Sonic Advance 3, if any of the lead characters (Sonic, Knuckles, Tails or Cream) have Amy as his/her partner, they can also perform the Hammer Attack with their own version of the Piko Piko Hammer.
Spin Hammer Attack
The Spin Hammer Attack is a move where the Amy spins the Piko Piko Hammer while on the ground. This move can only be used when Amy possesses the Warrior Feather. It has appeared in Sonic Adventure and Sonic Adventure DX: Director's Cut.
The Jump Attack is the Hammer Attack performed in midair. This move has appeared in Sonic Adventure, Sonic Adventure DX: Director's Cut and all three Sonic Advance titles.
The Hammer Jump is a move where Amy uses the Hammer Attack to launch herself into the air. This move has appeared in Sonic Adventure, Sonic Adventure DX: Director's Cut, Sonic Advance, and Sonic Advance 3.
Mid-Air Hammer Jump
The Mid-Air Hammer Jump is a Hammer Jump performed while Amy is in midair. This move has only appeared in Sonic Advance 3.
Big Hammer Attack
The Big Hammer Attack is a move where Amy attacks the foe with an oversized Piko Piko Hammer using extreme force. This move has only appeared in Sonic Advance 3.
Spinning Hammer Attack
The Spinning Hammer Attack is a downward whirl with the Piko Piko Hammer from the air. This move has appeared all three Sonic Advance titles.
Swinging Hammer Attack
The Swinging Hammer Attack is a vertical twirl with the Piko Piko Hammer that flattens nearby surroundings. This move has only appeared in Sonic Heroes.
- Hitting Springs with the Hammer Attack in Sonic Advance greatly increases the Springs' launching power for Amy.