Hopping
From Starfy Wiki
Hopping is an ability in Densetsu no Stafy 3. When using it, Starfy or Starly ride a pogo stick. It is giving to the player by Mekani Genius to save Mekani-jiisan.
Controls
Use the control pad to move left or right. Press the A button to jump much higher. When it's upgraded it has a jet pack that lets the player stay in mid air for a few seconds by pressing and holding the B button.