I think it might help if larger numbers were displayed to... say... 3 decimal points? Also, I can see a change in the number representation symbol system might prove beneficial. (e.g. "Qd" for Quadrillion, "Qt" for Quintillion, "Sx" for Sextillion, "Sp" for Septillion, "Ud" for Undecillion, "Qtd" for Quattuordecillion, etc.) That way, numbers surpassing the Vigintillions could be displayed as well. Possibly... (Just a suggestion, though.)
Is it just me, or are there some subtle puns in some of the hero names? (e.g. Broyle Lindeoven = "broil in the oven", Bobby, Bounty Hunter could be a parody of Bobba Fett, etc...)
We're prepping for putting in a better system shortly.