I had to warm up to this game a bit. (Doing it for the giveaway as I'm sure many are.) It's decent and actually very deep, but ultimately, it's not really my cup of tea.
TIP: To get the "Scaling the Ivory Tower" badge, you have to not only get past the 25th floor, you also have to exit the tower. This means that after you pass the 25th floor, the next door you enter, you must click "Exit Tower," or it won't show that you've gotten past 25 floors, even if you die.