All I can think of is his projectile seems faster to me. xD could just be nothing though.

Do you mean Level leaderboards or just worlds? Worlds could be interesting. We already did it for 100% because there was a contest for those. I'll look into it.

Ya, we have a good indicator for it, but it's kinda a jump and pray thing haha.

3mix has a lot of lag in the game even when run on an actual NES console. If something is reducing the lag the game is supposed to have, than that wouldn't be allowed, but if it's just fixing some computer lag you were experiencing before it's probably fine. Retroarc also uses the runahead feature that improves latency from controller to the game. I think that generally 1 frame of run ahead is accepted and 2 is considered actually faster than the NES.

As title says. On the 3mix boards we have rules for all the misc categories but they don't show.