This updated Bullet Physics release was used for the "Learning Agile Robotic Locomotion Skills by Imitating Animals" research., led by Jason Peng.

See also https://xbpeng.github.io/projects/Robotic_Imitation/index.html And a video here: https://www.youtube.com/watch?v=lKYh6uuCwRY There is also an example of model-predictive-control (MPC) for quadruped locomotion. See the repository here: https://github.com/google-research/motion_imitation Install PyBullet using: pip3 install pybullet --user --upgrade