When performing the Flying Kick, Sonic dashes towards an enemy and immediately hits it with a mid-air kick while dealing damage. Enemies hit by this attack will then be sent flying away in the direction the player kicked it until they touch a surface. If another enemy is caught in the path of the enemy knocked away by the Flying Kick, they will both be defeated.
This move is sometimes the only means of defeating enemies which cannot be defeated by the Homing Attack. Badniks such as Crabmeats or Tarantulas will block anything else and deal damage to Sonic unless the player uses the kick to lower their defenses first. There are also enemies that require a partially or fully charged Focused Homing Attack but can be defeated by a single kick, such as Antlions. The move can also be used on certain projectiles to reflect them back, such as shelled bombs dropped by a golden Ball Hog or Zor's missiles in the Silent Forest Zone 2 fight. However, Flying Kicks have no effect on certain enemies, such as giant Caterkillers or bosses (with the exception of Zavok when he is guarding during the Sky Road Zone 4 boss fight in the Wii U/PC version).
To perform this move, the player must approach a Badnik. When close enough to the enemy so that it is locked-on, the player must jump and press / on the Wii U GamePad to kick the Badnik. If multiple enemies are locked-on at once, the enemy closest to Sonic will be targeted.
The Crabmeats in Lava Mountain Zone 3 can be taken out with a Homing Attack, whereas the ones in Tropical Coast require the player to use the Flying Kick to lower their guard first or Sonic will take damage.