Decent...
I, like many others before me, though this was considerably too hard for a demo. After playing it several times, though, I found a decent strategy to beat that first boss. After beating the first boss, nothing after it is very hard. Even the second boss was cake. Wraith is a nearly essential feature to use, and the fact that it can be put on the rusty knife for free made the first boss considerably easier (for people who have not tried this, try it). Anyway, it was pretty fun after I got the hang of it, and I was very disappointed that not only was it only a demo, but that the full version requires money to play.