Complete the game (any difficulty)

Kill 15 enemies with melee attacks

Kill 100 enemies with a headshot

Kill an enemy with every weapon

Destroyed the 3 anti-aircraft guns in Chapter 8-2 within 5 minutes

Connect the Eco Beams

Collect 28 Scout Flies

Herd the Yakows in to their Pen

Get the Power Cell from the Pelican

Find 1 Treasure

Pick a three pin lock in under 15 seconds

Find 5 treasures

Kill 50 Enemies with the Moss - 12