I was wondering if it'd be okay to work together with multiple people for IRL%, or if it had to be done solo to count.

Yo, I know this is would be a very niche category in an already niche series to run, but I feel like it could be fun to run the whole Rhythm Tengoku series in one shot, all levels (not all perfect or all medals). Timer starts when Rhythm Games is selected on Rhythm Tengoku, ends on the last text box after beating the Final Megamix. Just an thought I had.