However, it seems that the Thumper wont enable with the trainer. I get to the point where its supposed to unlock (tutorial popups tell you how to use it, and the store lists a 'new item' for the Leash section), but it doesn't seem to work. On the skills store thingy, it says "Thumper Full" for the first one (despite the fact that I've not used any thumper cheats at this point) and "Upgrade Not Available" for the other.
Edit: Got to Chapter 2 with it still bust, decided to restart the game at Chapter 1, went through the point it's supposed to activate again, this time without even launching the trainer, and it still didn't activate. I think either my save is bust from using cheats in Chapter 1, or the game is bugged. I don't much fancy completely restarting the game to test hypothesis #1 either. :/
[Edited by Draesk, 10/22/2014 3:41:08 PM]
I had two other problems tho. One was when exiting the Dropkit you sometimes got stuck in a position where you couldn't move. The other problem was when switching weapons you sometimes didn't have a weapon at all and had to restart the checkpoint.
Once I figured out how to avoid those things the game was a blast to play. Solid pure FPS action especially those skill shots with those unique charged-up weapons. I've played thru 3-4 times now and will no doubt play it again one of these days.