Okay so.
This is what I was thinking of.
People don't chose their own type of replay, I was thinking in rounds. So round one, everyone has to do a parkour replay. The best 5 from that get picked to move onto the next round, which is sparring. After that could be tricking, and so on until there is only 2 people standing. We give them a special task and whoever's replay we like best would win.
We could also set it into categories. (Eg, parkour, spar, trick)
We take the 4 best winners from parkour, the four best from spar, and the four best from tricking and pair them up against each other. Then whomever wins out of those groups will be paired up again until we have only one person standing from their respective category. Then those would be the winners.
Badly thought out, this is just an idea and nothing in pitching seriously