Everyone is getting all bent out of shape cause this 8 year old game has a few bugs. They aren't even that bad, the fixes are fairly easy to find and implement. I'll outline them for those who are curious or stuck:
1- Disable all HID-Compliant Consumer Control Devices which can be found in the Device manager under Human Interface Devices. You can search for the Device Manager in the search bar at the bottom left of your desktop (if you are using Win 10). Right click on the device to bring up options, and then disable. Don't forget to re-enable them when you are done.

2- During a mission fairly early on when you get the claws, you'll be asked to perform an attack, but the move won't register. The fix to this is to go Alt+Tab and then bring up your task manager. Right click on the game and click on Go To Details. Right click again on the game and click on Set Affinity. Set it to Core 0. I've also seen people use Core 0 and 1. You will most likely need to restart the mission to get the attack to register. If you've done it correctly, the time in game should stop and wait for you to complete the action. Once you've passed this bit, reset your affinity to all cores. I've not seen this issue anywhere else in the game.
Note: Your framerate will tank after setting affinity to 0. I think that's the point but either way you're gonna have to deal for a bit.

That's it. It probably sound complicated but it really isn't. I'm sure there are tutorials out there if you really struggle with this. It's pretty simple. Hope this helps someone. This game is good enough to spend a couple seconds figuring out it's craziness.

And for everyone having a cow about Activision not doing anything about it, they are the PUBLISHER not the DEVELOPER. And the dev is basically non-existent now. It's an old game, just suck it up.

The game itself, is very good. Better, I think, than the first. More streamlined, but not missing out on any important elements. Looks pretty good all things considered. Short though. Got all the collectibles and did all the side quests in 15 hours. If you can get it for cheap, it'll be a fun weekend game.

doesn't work even after trying every fix that i have found and can't even get my money back

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