Sorry it took so long to respond (or even notice the comment, wasn't notified at all)

I wrote these rules yeaaars ago and hadn't really thought of it much. There is indeed a way to get the media tower card taken by Roxanne and return back to the Media Tower, but it would either require the media tower's power to be drained so you can pry open the door or to use the artifact to teleport back (not possible in the english version since the artifact softlocks due to a non-functioning EXIT button, though it's best to drain the power anyway since you'd need to use the artifact at the tower first and go back). As far as I know, there is no Roxanne event.

There are currently only 2 runs : The Any% I did 5 years ago and a Artifact% by OldSpeedruns, seems the site now hides some categories with an arrow...