Read the notes! All ammo unlocked for all levels with 100 shots. Note : The levels with the helicopter - sometimes you'll need to reload the level if it gets stuck - the reload level icon is at the top right.
Rig Wrecker Hacked
The big sea Rigs are an eyesore and produce a lot of pollution so you have decided that you are going to travel the oceans and destroy 25 of these offshore rigs and stop them producing more pollution.