Zero Project is part of the official Mega Man RTA Leaderboards, and here is a recent world record by me:https://www.youtube.com/watch?v=15WZdZfCT3g
Zero Only in 42:41.
It's a good run, nailed most of the strats. First try elevator skip in Doppler 2. I still believe in sub 42, and I would like to see it one day. For a Zero Only run, that is. For this run, I collected one subtank for safety. Skipped everything else. In a run with character swaps, I guess the fastest route would be Zero through the 8 mavs, collecting the boots and buster upgrade, then killing Zero at Doppler 2, and finishing the game as X with the beam saber because it saves a crap ton of time in the boss rush and Sigma. The boots would be collected for elevator skip.
I haven't really looked into a run with X at all, though, so I'm not sure, though.
It's a tough run, very challenging towards the end. I just still really dislike not having a quick kill saber for Zero in the refights because it literally means having the exact same boss fights twice in a run, and that's lame. Not to mention having to deal with Tiger and Catfish RNG twice in one run. And the removal of the insta kills for Crawfish and Seahorse hurts a little, too. But if that's the way it's gonna be, then that's the way it's gonna be.
I still like it a lot.