Share 'Face plant legal?'

I am a bit confused about what makes a legal putt within 10 meters. Are you allowed to stay up on one foot then fly forward once the disc stops? Can you touch down with both feet after the disc  stops then fall on your face?  How about an akward off balanced step to the side without advancing forward? How long do you have to stay still to be determined balanced? And I thought a legal catch in the…