We investigate the effects of showing empathetic states of one collaborator to the other during an immersive Virtual Reality (VR) gameplay experience. We created two collaborative immersive VR games that display the real-time heart rate of one player to the other. The two different games elicited different emotions, one joyous and the other scary. We tested the effects of visualizing heart-rate feedback in comparison with conditions where such a feedback was absent. Based on subjective feedback, we noticed clear evidences of higher positive affect, collaborative communication, and subjective preferences when the heartrate feedback was shown. The games also had strong effects on the overall emotional experience.