Nice game :). The character controls pretty well! The jump when you only tap the spacebar is quite low, but other than that, nice controls :), I ended up liking the use of J,K,L. It's nice to have both melee and ranged attacks! But perhaps there could be a bit more of an indication of what you hit with melee.
I didn't like the level design sometimes. The fact that there is something below the starting point makes you wonder if falling is good or bad (and sometimes you fall to your death anyway). It's hard to know where to go. And the platforms are moving so fast it's hard to jump up on them - slowing them down on each end of their trail might solve the problem.
Having the crafting menu only text-based makes it a bit hard to follow. The game also lags quite a bit sometimes (at least on web). And the enemy bullets go through walls.
But other than that, very nice game! Great job on the models and animations! I don't really do 3D, but I believe it wasn't eazy to make all the characters and environment :). Well done!