Defeat 30 enemies with Mk-NDI grenades

Defeat 50 enemies with hand-to-hand combat

Defeat 20 enemies with hand-to-hand combat

Kill 30 enemies with the M79

Kill 10 enemies with grenades by aiming while hanging from a ledge

Achieve 24 medals on predator challenges

Solve every riddle on the island

Solve 85% of riddler challenges

Achieve 16 medals on predator challenges

String up one henchman and drop him to surprise a second (any play mode).

Achieve 8 medals on predator challenges

Complete a combo of 40 moves (any play mode)

Complete story mode on Easy difficulty