i am new on this website i always wondered like how for some games there are 100% catogories & some doesnt do you have to request them or something or are they there by default & if you can add new misc catogories how do you do it

Games are managed by their moderators, some are only moderators because they are the ones who requested the game so only made a section for games they run, others are more invested into the community so they keep everything in check, making catagories for any new runs catagories that come out. It would depend on the game, but if you want a new catagory just contact a mod of the game.

All games are managed manually. Each category is made individually. There is no scripts to create automatically any% or 100% (this is why you can find some bad-moderated games with no category).