Make the BMR final boss replayable

The final boss of BMR was a nightmare to learn for a good chunk of people including myself, but undeniably it was incredibly fun.

Would be a fun thing that they can add hi-scores/fastest time for this boss or at least make it replayable like they did with galvek from DS2.

Would be a little disaapointing to go through such a huge learning curve for such a fun boss only to never play it again after winning.