Got a hole-in-one

Play the game for 4 hours in a row

Finish the level Sunshine

Throw a duck

Play for a total of 3 hours

Shoot with the Machine Gun in the Refinery

Climb the scaffold in the level Traintracks

Shoot with a sniper in the game

Finish the level Caves

Kill all zombies that are locked up in the cage in Canyon

Got a birdie or better on every hole on every course

Dodge 4 bullets at the same time.