Scoring system is already in game, therefore the total score of the 2 players + 20k uma for each stage beaten, which I guess it's a fair bonus for beating a stage?
Enjoy getting rekt by the rep player btw
ETA: sample junk replay (don't have scores and don't want to rewatch atm), 98% avg speed
Advised to use autoframeskip due of the intensive (& broken) video effects.