Considered one of the best and most consistent Italian strikers of his generation, Vialli was a complete, dynamic, determined, and versatile forward, who was capable of playing anywhere along the front line; throughout his career, he was played on the wing, or in a deeper, supporting role, although his preferred position was in the centre as a main striker, where he could best take advantage of his offensive movement and opportunism inside the box, as well as his keen eye for goal. A prolific goalscorer, Vialli was known for his shooting power and accuracy with both feet as well as his head, which allowed him to finish off chances both inside and outside the penalty area. In addition to his ability to score goals, Vialli was also capable of playing off of and creating chances for his teammates, courtesy of his good vision, tactical intelligence, and distribution, which also occasionally saw him play in deeper roles in midfield, as a playmaker or attacking midfielder; he was also endowed with good technical ability, dribbling skills, and ball control, which allowed him to play the ball first time, or beat opponents and retain possession under pressure. A quick, tenacious, hardworking, and energetic player, Vialli was gifted with pace, physicality, and stamina, and was known for his willingness to press opponents off the ball in order to win back possession. Vialli was seen as a new breed of striker in Italian football, who combined technique and goalscoring ability with speed, athleticism, and physical power. Because of his outstanding athleticism, strength, and agility, he also excelled in the air, and had a penchant for scoring acrobatic goals from volleys and bicycle kicks, which led his Juventus manager Marcello Lippi, and president, Gianni Agnelli, at the time to praise him, and compare him to legendary Italian striker Luigi Riva. In addition to his footballing skills, he was also highly regarded for his dedication, leadership qualities, strong mentality, and his charismatic influence on the pitch.