Hammer Attack

The Hammer Attack is Amy Rose's signature attack. It first appeared in Sonic Adventure and has since then been established as Amy's primary offensive maneuver in the Sonic series. It is a technique where the user attacks with the Piko Piko Hammer.

Usage
Unlike most other characters in the Sonic series, Amy often lack the ability to perform the Spin Attack and the different versions of it. To compensate for this, Amy instead uses her skills with her personal weapon, the Piko Piko Hammer, to attack her enemies. In the Sonic game 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 perform the Hammer Attack as well, with their own version of the Piko Piko Hammer.

Variants
Over time, Amy has developed several uses of the Hammer Attack to give her more offensive options, mimic some uses of the Spin Attack and to make up for her lack of raw strength and special abilities.

Jump attack
The Jump Attack is the Hammer Attack performed in midair. This move has appeared in Sonic Adventure, Sonic Adventure DX and all three Sonic Advance titles.

Hammer Jump
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, Sonic Advance and Sonic Advance 3.

Mid-Air Hammer Jump
The Mid-Air Hammer Jump is the 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 a oversized Piko Piko Hammer and with extreme force. This move has only appeared in Sonic Advance 3.

Hammer Whirl
The Hammer Whirl is a downward whirl with the Piko Piko Hammer from the air. This move has appeared all three Sonic Advance titles.

Propeller Hammer
The Propeller Hammer is a fast whirl with the Piko Piko Hammer that grants Amy brief flight. This move has only appeared in Sonic Heroes.