Hopping
From Starfy Wiki
Hopping is an ability in Densetsu no Starfy 3. When using it, Starfy or Starly ride a pogo stick. It is given to the player by Mekani Genius to save Mekani-jiisan.
Controls
The player must use the control pad to move left or right. The player must press the A button to jump much higher. When it is 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.