For (almost) every game in the Tenchu series, the IL leaderboard has separate categories for runs with different characters. However, for each of the following games: Rittai Ninja Katsugeki: Tenchu Tenchu: Stealth Assassins Rittai Ninja Katsugeki Tenchu: Shinobi Gaisen Tenchu 2: Birth Of The Stealth Assassins Tenchu 3: Wrath Of Heaven

every category in the IL leaderboards also has subcategories for each character, which makes them redundant. For example, every level in Tenchu 2: BotSA has a Low% Ayame category. However, they all include the subcategory Rikimaru, which I don't think is possible, and they include the subcategory Ayame, which is definitely redundant. My suggestion would be to either remove these "character" subcategories in the IL leaderboards for these games, or to combine all the separate character categories into one and keep the subcategories.

Sorry for the late reply but We can definitely look into cleaning up the IL leaderboards for tenchu 2 if that's something you're interested in running still.