This is the most frustrating game I have ever played on Kongregate. I have never had to swear at a game so much. Luckily I can't stand to be beaten by a game, 125 deaths but I got the Gauntlet!
The puzzles are difficult but the game works perfectly for me. Saves data fine and I am up to lvl 45 so far- a good challenge and still keeping my interest, better than most puzzle games!