I beat the game as well. I concur with Gigiya said; the game was easy after the first 30 or 40 levels. It had none of the hardcore roguelike aspects. I did like the gem mechanic for "leveling" your character. Near mid-game I started wanting to use those wings to get out - not because I was exhausted, but because I wanted to save my gems just in case I died because I wasn't paying attention. But since I didn't want to lose the powerful equipment I had gained, I just kept on going.
The one bug I did encounter was a passageway that was blocked off by a bag or chest; there was no way to get to the rest of the mobs. I only saw it once, but it concerned me because the exit could have potentially been in that passageway.
Boring. Plus near the end you can go infinitely high. Kill ninjas ==> +power, build power kick higher, the guy ascends past his previous peak. Keep it going ... until you get bored and realise how pointless it is.
As I've gotten higher in level, the incidence of people seeing my level and leaving the game that we were automatched for is quite high. It actually happens most of the time; perhaps 70-80%.
I'd like the ability to have anonymous matches where "rank" isn't considered.
 "The Enchanted Cave"){kind=icon}
 "Mad Karate Man"){kind=icon}
 "Kongai"){kind=icon}