I am writing this just after completing the DLC, and playing Score Attack, and I wanted to tell you all about the modes and how they could be set up on the leaderboards. There will be spoilers.
Episode Gladiolus: This could maybe be a sort of fullgame run? You can do a new game from the main menu for resets and such, I'll have to check if you keep the Dual Master glaive art (and the others) though.
Score Attack: The first thought I had for this would be an IL board - after each stage (trial) there is a scoreboard, which also has your IGT, though the game times down, not up, so a higher IGT is better in this case, and I'm not sure if that would be compatible with the existing IL category. Another thing is that it doesn't warp you to the same starting point after each stage (so if you defeat the boss in stage 1 while closer to the end of stage 2, your stage 1 IGT may be worse, while your stage 2 IGT would be better. I also don't think you can replay individual stages in Score Attack, meaning that to do an attempt at the last stage, you would presumably have to run through the earlier stages first. Rage and valor seem to be kept through stages, meaning you may have to do setup in the previous stage if you want the best time in the next stage. I assume that it shows a total time at the end of a full playthrough of Score Attack, though I haven't actually finished it yet...
Final Trial doesn't seem to have an IGT whatsoever, though I haven't finished it either. I imagine RTA would be used for that if it becomes a board.
I have finished Final Trial and submitted Episode Gladio as a standalone game with my run of Final Trial attached. That probably wasnt the correct process but im brand new to this site and didnt know how to contact mods directly.
