I had fun with this, but I wish there was more feedback when you are hitting the zombies or getting hit. Sometimes I couldn't tell I hit a zombie until they fell over and dropped the loots. It seemed like sometimes they played a hit animation, but not always. I was kiting a group of them around and I'm not sure when I got hit, I just noticed my health was down a bit. I think maybe an arrow or map to tell you where the portal is would also be helpful. I noticed there was a clock when I had less than 2 minutes left and started running to find the portal. I did manage to find it and get through. I think I got lucky. :)