of the chargers so that their corresponding values are at least 100. Once that is done, the elevator will open, and you can enter it to reach the next level. You can pump with A. With B, you can fire a sparc that will temporarily stun enemies. It will take some time to recharge, however. You can shoot when the value in the bottom right of the screen is 100. Also, if you charge a pump to 150, it...