While performing a forward roll, when you see Lara put both hands on the ground, press B. Instead of rolling to her feet, Lara will perform a handspring. Also, if you press B again just before her feet touch the ground, Lara will backflip. This is what happens; hold Forward and press B (Lara will roll). Press B again (handspring). Press B again (backflip). Press B again (another backflip). Press B one more time and Lara will finish with a "Roundoff", meaning she will do a 360 spin in midair while bringing her legs over the top and land facing forward. Note: The timing must be precise.