WOW!
This is a full-blown videogame! I loved it and am about to go back in and play more :) there's so much here! From the animatic at the start to the nice tutorial slide show to the rich, genuinely challenging mechanics.
I think the only thing I'd critique on would be literally just swapping the positions of the gladiators and the monsters around. At the very beginning I was a little confused and thought I was controlling the gladiator because he was on the left of the screen. That's obviously a very minor issue though.
Bravo team you nailed it!