Allegro Entrechat is a Special Move used by Teru Saotome and Earth Virgo GB145BS.
Beyblade: Metal Fusion
This special move is a move that allows Virgo to quickly dodge the opponent's attacks. Look at the picture. The black line represents Pegasus moving to where Virgo was, trying to hit it, and the yellow line represents the direction where Virgo went to easily dodge Pegasus. This move is inspired by the actual ballet move, Entrechat, where the dancer does a quick jump and rapidly bumps their heals together. Allegro is a quick pace. So, the bey "quickly" moves its "feet" like the dance move.