Darksiders II Cheats
Firstly, we can try to help you get the proper trainer so that it will work. Also note that after roughly an hour and a half to two hours in I've noticed the float mode part of the trainer fails to work. You could alt-tab out, reload the trainer, and be back in game to try it again.
Tell me if you're using a retail or steam copy of the game, if it's fully up to date or not. That way we can pinpoint which trainer is for you.
Also, once we get a trainer working, I suggesting floating to the top of that area without triggering the start of the event. That way you have all the time you need to float on up. I'll try to get this post tagged so I'll know when you post again and I can help you.