Completed "Picking up the Trail"

Completed "The Waters of Life"

Completed "Tranquility Lane"

Perform a 10-Hit Combo in Arcade Mode

Shoot 2 enemy dynamite sticks in mid air.

Take out a Japanese soldier lying in wait in the grass.

Finish the game on at least easy difficulty.

On chapter XI, kill all the Indians during canoe chase.

Kill all enemies in a single Cooperative Concentration Mode.

Deliver 99 headshots (ranked play counts).

Finish one side quest.

Finish any chapter, except for VI and VIII, without getting severely wounded.