So I found a glitch that’s super abusable to get your character levels to max and earn a bunch of fight money while we wait for the game to actually be in a playable state.
In survival, if you pause and unpause the game rapidly after striking the opponent (I have a turbo button bound to it for best results), the game will continue to tally your score higher. I used this to basically break the score counter and max out my character levels in an hour.
Spoiler
Hopefully this gets patched if they ever implement leaderboards but for now it’s an easy way to get some extra fight money.