I wanna buy this game again solely so that I can do speedruns (And unlock all Amiibo) so I've been thinking can I use Pretendo for this game for speedruns because if not online is gone so I guess I missed my chance :(

I wanna speedrun with my brothers for this game instead of just myself maybe there can be an option for multiplayer?

So We Have A Category For 1-8 (Octalathon) Can We Have One For 9-10 Sense They Have The Same Formula?