We are presenting a pilot study for a more Immersive Virtual Reality (IVR) Brain-Computer Interface (BCI). The originality of our approach lies in the fact of recording, thanks to physical VR trackers, the real movements made by users when they are asked to make feet movements, and to reproduce them precisely, through a virtual agent, when asked to imagine mentally reproducing the same movements. We are showing the technical feasibility of this approach and explain how BCIs based on motor imagery can benefit from these advances in order to better involve the user in the interaction loop with the computer system.