gongfuren
Arma Virumque Cano
The beta just opened to players who joined Fightcade in 2016.The new Fightcade beta includes the Sega Genesis versions of UMK3, MK3, MK2, and MK. Download the emulator here. You need an account from 2015 or earlier to access the beta at the moment, but they are slowly adding in more accounts.
If you are interested in playing other games, here is the full rom list. Apparently it is not final, and may change once the beta ends.
https://twitter.com/FightCade/status/927543537591312384