Ya know, I came here simply for the badges, but ended up really really enjoying the game and the graphics and, well, all of it. Great bit of fun NivalPublishing!
Maybe this is just because my computer is a heap of rubbish, but I think it's awful unfair that I died on level twenty after the game literally pausing for three seconds. I really can't help that, and this game is absolutely not worth redoing.
For clarification on my previous comment I mean that I have all the correct slots filled but the game will not accept it. (And Yes I have checked over the correct combination)