I thought this was a really cool game! I found it to be better than the first one probably because I was more familiar with the gameplay. It also helps that there's so many different kinds of zombies and stuff to destroy. The most annoying things were probably those naked mole rat monsters. The graphics were really nice too. I chose the girl instead of the guy this time.
It was interesting how there were a certain number of waves. I was afraid the whole thing was just going to go on forever. It turned out to be extremely entertaining with all the gunshots and stuff. It's just a well rounded game. I'm glad you're continuing to make these great games!