Level skip: 
Have Lara walk one step forward (with [Shift]), one step back (with [Shift]), rotate in three full counter-clockwise circles (with
[Shift]), and jump forward (with [Alt]).

All weapons: 
Have Lara walk one step forward (with [Shift]), one step back (with [Shift]), rotate in three full counter-clockwise circles (with
[Shift]), and jump back (with [Alt]).