I did it... I finally beat it. It only took a total of 45 minutes and over 800 deaths. First session I got frustrated at floor 20 and quit, second session took about half an hour and 600 deaths. Most deaths coming from floor 30.
i'm trying to get the final quest for completing the whole game but some of the levels are killer! i was stuck on level 25 and 30 for about 20 mins each and now i'm stuck on level 32, i'm too stubborn to give up though
Floor 30 is 80% harder than the next hardest level. Floors 34-40 are as hard as floors 14-20. Once you get past level 30 (and then level 33, which is 2nd hardest) you've basically won.