I'll give this fangame a try later!
It will be a nice addition to the hololive fangames database. :)
Oh and a tip: If you'd like your game to be played by hololive talents on stream, you should provide an email address somewhere in the game page, so that COVER can contact you for permissions (just stating the game is free to stream on the game page is not enough). This is something Calli mentioned in one of the streams where she played some fangames.