Works pretty well for a prototype! Looking forward to more :) my only true gripe is that anti-aliasing on a pixel font makes it hard to read. My favourite things so far are the skill animations!
Just a few notes on the music: it's catchy and when the battle theme drops it drops HARD, but I think most instrument samples are a bit harsh. Still, the foundation is solid, and I found myself so into the boss theme I got kind of sad when I won the fight...
P.S. The snowball mini-game could be more accessible if you could throw snowballs continuously by holding the action button instead of pressing once for every throw