There's a little bug when buying the weapon and equip upgrades. If one of them is maxed out, at some point it might appear a guy trying to upgrade it more, though it's level is maxed, it still takes out your money. At some point it just becomes very easy to grind for money, principally on Area 2 where after you reach level 15-16 the only enemies you find are Discreet Bears, that are ridiculously weak. I think that even though you level up, the weak enemies should appear too instead of only the strong ones defined to the level you are, in the nethack difficulty is pretty hard to defeat the mob and the guad in the first area. And the Knight is the best character, you can easily pass every area without being hit once if you get enough armor to guard the atacks and counter after with bash. Still, the game is simply awesome and I can't stop playing it. Great job! :)