!NOTE!:TO TAKE THE REVIVAL PILL HIGHLIGHT REVIVAL PILL FROM THE ITEMS MENU BY HOLDING THE L2 AFTER THE GAME OVER SCREEN COMES UP AND USE IT WHILE IT IS STILL IN THE MENU AND ALSO NOTE THAT THE USE BUTTON IS CIRCLE
When I first fought The Sorrow I was like ok man I got to dodge these dead bodies and stay alive.Anyways this is a pretty easy battle when you even get there well actually its not really a battle it's more like an obstacle course that moves so anyway here's the guides(oh yeah there are 3 ways to do this).
Way 1(easiest way but you don't get The Sorrow's camo suit if you do this way):Take a Fake Death Pill and don't forget to do the revival pill thingy after you use the Fake Death Pill(see what did I tell you ,easy).
Way 2(this way requires that you didn't kill anybody before this point in the game):You will see no one in the river except the previous bosses you fought(they died but they don't count as kills)just avoid them and when you get to the end(ha ha the end get it, the end)and "die" just take the Revival Pill and that's over(this is the way you would want to do if you're trying to get the stealth camo)
Way 3(the normal way):if you're just that normal average joe this is probably what you did.Ya got past all the dead bodies then you got to the end, where The Sorrow is,Yipee kay yay cowboy.Anyway,once it says game over you just take the Revival Pill and that's it.
Hope you found my guide useful.