To explore the above hypotheses, the study design will employ a randomized control trial design. Expected and experienced self-report anxiety and pain scores in children assigned to the belly breathing biofeedback group will be compared to control group scores. The experimental group will be taught to belly breathe using the biofeedback game application and will be instructed to use it during the blood collection procedure. Control Group 1 will receive standard of care. Control Group 2 will receive belly breathing training without the application and be instructed to continue with self-directed belly breathing during the procedure. Control Group 3 will be taught belly breathing without the application plus receive distraction of watching the cartoon avatar in the hot air balloon rising through space; however, the avatar will not 'coach' the child as the visual cues for breathing (words and bubbles) will not be present and the avatar will not rise in response to correct belly breathing. Belly breathing compliance will be measured using extracted respiratory rates from collected PPG data.