I updated about a half-hour ago and everything appears to be alright. Hope you can solve the issues with yours. I have heard of system updates bricking systems.
NapTimeSleeper's forum posts
I had some fun with it. I got to about level 24 before I had my fill. I enjoyed using the traps but I agree with what others have been saying about it. None of the maps really look that good and the frame rate really takes a dip. The melee system is also pretty bad.