When Dashing, your hammer turns enemies and obstacles into Rings!
— Description, Sonic Dash 2: Sonic Boom
In gameplay, Ring Hammer is the Special Power of Amy Rose. It is only active while Amy is using Dash. When in use, Amy swings her hammer around and uses it to turn any Badniks and obstacles that she may collide with into Rings upon impact, which the player will then pick up. Once Dash wears off, so does Ring Hammer.