So, here is the thing. Co-op speedruns currently are using one player to actually play and use the other to always be in last place so that they can become a Darkling and give the player in first place over-powered items like the Overlord's Crown. I believe that the second player can be used to help speed up game progress. If single player speedruns exist where there is an AI against them, then why can't the same strategies be applied to a co-op speedrun? Starmoneywhatwhatwhatmoney and I are currently attempting this strategy for a Dokapon speedrun world record.