I know tht you said that maybe you'll check it for the amount of peoples in rooms but you really should make rooms with amounts of wins, especially for the ones that has low wins beacause its hard to grow up in spar vs players that has 20k or 30k spar wins..

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You should also put in reward room, some reward for the streaks cuz theres actually nothing that we win for doing streak, just a screen animation and if you grind them you can be on the podium at the start hospital, you should add rewards for streaks too