Optimized for turbo mode (Shift+green flag). Press space to start walking or stop walking. Press left and right keys to switch direction. Press up to jump (press up while in the air to jump again after landing). Press down to come down from a jump and prevent a next jump. Press 1, 2, 3, 4 to change facial expression. Press n or b to go to next or previous background, respectively. Press z to end all and reset.
Named after the camera movement technique of panning, although if you want to get technical it's closer to trucking. "Seamless landscape" images from iStock. Will be made into a game in the future.