Instructions
Select "Free Play" from the Toribash main menu so you can see your character.
Click any of your character's joints to change the state of that joint. For instance, you can make the left knee bend by contracting the corresponding joint while making the right wrist still throughout the move by holding its joint. Do this to other joints until you are satisfied with the preview.
Press the space bar on your keyboard to move a single turn forward, which is equivalent to 10 frames by default. Keep pressing the space bar to move faster.