Prince of Persia series (Score 1, Insightful)

I liked how difficulty was presented in the Prince of Persia series (the recent relatively recent games starting with Sands of Time, not the 80s old school). If you die or mess up, you can rewind time back to before you died, giving you another chance. This could only be done a fixed amount of times in the same situation, but was infinitly better than the restart the level method used in other games.