Death Trap

You have been sent to deliver a message. Suddenly, you run into the giant ship IT. IT doesn't want that message to get to the Galactic Emperor. You must destroy all three power generators to escape. One generator is hidden until the other two are destroyed. IT is protected by three shields above you; which are A, B, and C, from top to bottom. There is a forth shield, D, below you. Touching any sh...