apparently feet_collision_cost is not properly updated in Roboschool, for now, disable it in pybullet too: see https://github.com/openai/roboschool/issues/63
work-in-progress (need to add missing data files, fix paths etc) example: pip install pybullet pip install gym python import gym import pybullet import pybullet_envs env = gym.make("HumanoidBulletEnv-v0")