Larger Than Life- a(nother!) supers RPG

OK, I know that seems like the supers RPGs are coming out of the woodwork around here lately, but hermes (author of Capes & Cowls) expressed interest in what I have done over in the Bullpen thread, so I decided to post a link to my own (very modest, compared to these 2) effort and see what everyone thinks. Larger Than Life is what it's called.

The mechanics are polyhedral die-based, each hero has a Power score and a Karma score which act as in-game vs. metagame influence (Power is your basic abilities; Karma lets you re-roll die, pull out deus ex machina, get limited narrative power, and that sort of thing); they are inverses of each other at the start. Difficulties are given a die type and are not fixed; that is, they are based on the importance of the task to the story and how much the hero should be challenged. Damage/defeat reduces Power level by one or more die sizes; Heroism is an attribute that you can use to recover from defeat as well as pushing Power. Heroes can have higher or lower die sizes in 'Styles', which are basically different groupings of actions/tasks. That is basically the gist of it.

What I am looking for is comments on if the basic resolution system is sound and if I have missed anything, as well as how well it reflects the genre (in a 'traditional' RPG sense, mostly; the metagame aspect as present in Bullpen is not that strong in this game).