First couple of time you die it send you back one level for, but after a couple of times it just restarts you on the level you died at. I thought the fitted the theme very well. The instructions on how you beat the hammer were also not clear. Maybe make the instructions appear again after you have failed a couple of times at a certain level, so that the player can read them again. I got to level 6, but then it was just to much stuff happening at once.