hi, very good game !
i have two ideas for your game :
+ first miss the random level on the random character
+ second , why don't put players on one room , before play the vs ?
this problem , can resolve as worm armageddon , with a server , without pay, with irc ! internet relay chat , as many command & conquer game - type https://cncnet.org/dawn-of-the-tiberium-age
inside the game , as a irc , chat and play . Is big work for nes game , but is a bit great idea ! bye thanks for your game