Don't fret any longer trying to figure out how to kill that 6th Colossus because Allison is currently working away on the LB Shadow of the Colossus Walkthrough and Strategy Guide. She has beaten all 16 Colossi and is currently going through the game again, taking screenshots and writing up each Colossus. In the meantime, if you need help, head on over to the Shadow of the Colossus Help Thread on our Message Boards. Oh, btw, Allison is loving the game.