bgweber writes "There's been a lot of discussion about whether games should adapt to the skills of players. However, most current techniques limit adaptation to parameter adjustment. But if the parameter adaptation is applied to procedural content generation, then new levels can be generated on-line in response to a player's skill. In this adaptation of Infinite Mario (with source [.JAR]), new levels are generated based on the performance of the player. What other gameplay mechanics are open for adaptation when games adapt to the skills of specific players?"