yes, you do, PG. You're a level 25 monster.

Looking at my "enemies defeated" screen, there's a whole consecutive 6x9 chunk of creatures (apparently "Dark" creatures) that I haven't even encountered before, though I've been everywhere (that I know of) and completed every quest I could find. There's still a few other enemies I haven't encountered (including one "Uber" enemy - the one next to Baloki), but that block is 95% of the ones I'm missing. Is that in a hidden area or something?