On lvl 4 I follow the instructions and connect the boxes to the anchor point with the bar and then hit start. The green ball falls, when it hits the boxes the whole thing breaks and falls off the screen.
Finally got the game to play without locking up by upgrading quicktime and rebooting.
@JohnLayman : You don't have to get hit. Your hit box is a really small area in front of your cannon. You can actually weave though heavy fire without getting hit.
The game is fun but it hangs all the time. At the beginning of a level, at the end of the level, when you buy something. It seems like it hangs every time it saves. Makes the game far less fun when I have to constantly wait on it.
This game is a lot of fun but many of the components don't seem to do what they say they do. For instance I don't see my shield recharge rate increased by the Magnetic Recapture Coil. Still, very cool game.