It would be nice to have a mod that took parts of every map and put them into one and you got to keep going until you either failed or ran out of songs. You would also be able to but mods like hidden, double time, hard rock, etc on and add a score multiplier. In addition there would be another leadorboard set which would contain the Marathon stats for how long they played. a list of maps you could view by clicking a button, the max combo, and the mods. The score multiplier would go up but 0.05 every time a map is finished and would max out at x2.00 multiplier, going to 2.10 if there were mods included. This mod would be called the Marathon mod, and would have a 0.5-1 second break between maps