Interesting game.
I like the concept of building your character by rolling dice to know the number of points you will get. But it seems a bit unbalanced, I mostly upgraded the strength over the other 2 possibilities. I tried to focus on the health but I don't know if it does anything because I still die really fast. And there is no need for a big movement speed, as the arenas are very small.
The musics are nice, being able to choose which one to play is a neat touch :)
Good job!