I've been thinking about doing a 1P asynchronous category (Fireboy and Watergirl cannot move at the same time). This makes it possible for people with less coordination to submit a competitive run, and makes for a harder challenge. Before I added the category, I wanted to see the community's thoughts on the topic.

Sorry for the late response, but here's my thoughts on that.

That could work, but I guess the runs would be hard to verify, as some tricks require to switch quickly between the 2 caracters. For example, to do the elevator skip in Fireboy and Water girl 2 (level 19) could be done by rapidly alternating between the 2 caracters, making it not worth it. Also, I'd say that it would make the game maybe too easy to speedrun (?) and a bit boring to watch. On the other side, some tricks may be discovered to make it more entertaining. I'm for the idea, because some people may enjoy it more than me.