This is an awesome Bioshock Big Daddy sculpture built by Finnish LEGO lover Pate-Keetongu from original Lego pieces.
The body is built of pieces from the Lego Exo-Force flying mecha sets, and the arms use ball joints and are movable. For the the builder used a “Big ball” or “Tectonic ball” piece, which is held onto the body with the bricks and tubes around it. The Big Daddy’s hand drill is a piece of the classic Rock Raiders sets from the late 1990s.
Check out Pate-Keetongu‘s blog for more info on how he created the sculpture.