I started implementing a replay mode today. It's working to an extent right now. A couple of moving objects (like the ice cubes) don't get recorded, and the enemies are a little off. For the most part, though, it's working pretty well. Flag mode and KOTH mode, on the other hand, are working very well. I tried a mode earlier where the goal was to hold the flag for 2:00 and to get 2 hills captured. It was pretty darned fun.