Returning a really bad game

[RedRover]

I bought Tony Hawk Project 8 for PS2 this weekend. I read some reviews and knew it wasn't going to be great, but I can't believe how bad it is. It's frozen a bunch of times while I was playing. I randomly change change directions and crash for no reason. Menu options have disappeared, for example the ability to set a restart point is gone). Now it's corrupted my save file. Target won't take it back because it's open software. I've talked to Activision but they said all they can do is offer me a replacement disc for a small fee (LOL!) while at the same time acknowledging that everything I've said is actually their fault.

What recourse do I have from here? I bought the game with a debit card, so maybe I can contest those charges somehow?