Wallace is a springy forward with a rugged style. He brings toughness and physicality to the paint. He crashed the boards effectively at both ends of the court. Wallace has a polished paint game, scoring over both shoulders and uses the back board well on his finishes. He sets good screens and rolls hard to the rim, showing good coordination to catch and score on the roll. Defensively, he uses his height and strength to wall up and block shots.

Wallace is a springy forward with a rugged style. He brings toughness and physicality to the paint. He crashed the boards effectively at both ends of the court. Wallace has a polished paint game, scoring over both shoulders and uses the back board well on his finishes. He sets good screens and rolls hard to the rim, showing good coordination to catch and score on the roll. Defensively, he uses his height and strength to wall up and block shots.