
The graphics are better, and so are the controls and the sounds. Overall this sequel is a big improvement over the first, but it still isn't perfect.
To be honest, it's not much of a challenge. Most often, I end up dying from making some stupid mistake because I tried to liven things up by trying to kill some the oncoming hordes in a different manner than before. For the most part, I rely on the shotgun and grenades to carry me through.
Play Boxhead 2 at kongregate.
You may have noticed I've been playing a lot of games at kongregate lately and there's a reason for that. For whatever reason, a lot of the best game creators are now hosting their games there and the community is a lot of fun. So I am definitely recommending kongregate as a site to find all the best games.