Emotional regulation is an important skill, and some children require extra support to develop that skill. To address this need, we have built an active biofeedback videogame and incorporated the game into a cognitive behavioral therapy. Our approach requires that players simultaneously attend to a demanding task and still maintain emotional control, forcing practice and skill building in both domains concurrently. Early studies have shown that our approach improves emotional control compared with treatment as usual and has led to promising new developments of emotionally aware toys that can reach younger children.