lol invisi putting your hand up for stuff doesnt automatically mean you're playing it. xD
anyway the way bonus games is going to work is we just see what the situation is like at the time and make a decision on the spot about what is played and by who. the reason why is, a) there probably won't be time for every bonus game, b) the bonus games are meant to be more of a social thing where everyone chills and has a go and laughs at eachother and stuff, c) it's bad logistics to assign extra players to bonus games because of A. assigning main game players to bonus games is ok because they are already guaranteed playtime at the event anyway, but tbh I would like to avoid even that unless the person is -really- good at the game (tbh this philosophy has been indirectly applied to the main games too, two of the main games will be shared runs and the other two run by people who actually speedrun the game in their own time not just for the marathon).
all the people ive spoken to who have actually been at the previous marathons agree that chillax/flexible is definitely the way to go for the bonus stuff. some of the most fun times at previous marathons has been from chill play (first year twilight princess is a fantastic example).
anyway i'm not saying you can't play, just that you shouldn't go in there expecting to have a whole game to yourself. of course, if you want to practice beforehand you'll have a greater opportunity to play when the time comes. for the record, ss will probably be prioritized because its zelda, and anything n64 will be run on the ntsc versions (capture card woes, but anyway, be wary cause they play differently than pal, i recommend emulator+controller adaptor when practicing).
tl;dr bonus games are epic funtimes for all not just one person