use the slam fist to figure out the order to connect the stars, for this one the middle star connects to all other stars save for the one at the top right to it, then the stars to the left and right connect to each other while the top right one connects to the right middle most star.
hey, you wouldn't happen to know how to adjust the cannons do you, i know how to move em left and right but what about up and down for the room with 2 cannons?
