This is an interesting game category wise, I'm interested in how many categories you guys want. I'm not a huge fan of going down to individual championships in the main game (not the single disciplines) as categories because you'd run into a wall of categories a page long, but I'm happy to put up ILs for each stage and suchlike
I got a idea for the miscellaneous categories something short easy to run and be fun. Pretty much it would be breaking up the triangles in each season into a miscellaneous category runs. I know that would be lots of miscellaneous categories that would be added but bare with me For example "Brembo Blast%" would be running throw it as fast as possible from the first event to the last in category. Also could have a subcategory in it for example that does "Brembo Blast 100%" getting Gold on event/showcases in the category and making you do every race in the category which u would just skip over to the next unlock in the % run. I think others people would like doing these's runs since it would be something short to do for fun compared to others runs that take way longer.
