Since 2p coop is pretty much in the game right now, should there be some category extensions for 2p speedruns? I think it would be a nice idea

While I'm personally all for Co-Op speedruns (they're honestly super fun to watch, and even more fun to play), most of our leaderboards are already bloated with categories. The other mods and I would rather not make that issue twice as bad. The same goes for different character sub-categories.

I also haven't really looked into how to set up co-op leaderboards (not to mention Game Extension leaderboards), so I'm not sure how 1 player can have 2 different runs on the same leaderboard with 2 different players, or if that's even possible. There's also the frames of input lag to consider, which is different for each group, depending on the distance between the players, giving some online duos an advantage over others. Those frames of lag, even in small amounts, would give online players an automatic disadvantage compared to the few people who would be able to run the game locally. With online co-op, there is also the risk of the game freezing, or "buffering," for both clients to catch up to each other, or desync entirely. These freezes might make it easier to splice footage together.

The cards just don't line up... If anything, at least there IS an In-Game Leaderboard on Steam for Co-Op runs (including both online and local runs).