Hello, speedrunners! With Brutal Katana v2.1.0 the game introduced Persistent Timer, and the "100% (Full Game)" will now utilize it to relax the "No retrying" rule as well as avoid the tedious task of manually summing up level completion times.

All full game runs for Brutal Katana v2.1.0 and higher now require you to enable the Persistent Timer and prohibition to retry levels was removed:

All runs in this category must complete all 48 levels of the game with Persistent Timer on (Setting -> Game -> Persistent TImer)**. Resetting the Persistent Timer invalidates the run. ... The total completion time of runs submitted to this category is the time shown by the Persistent Timer after completing the 48th unique level.

The rules remain unchanged for Brutal Katana runs on versions without the Persistent Timer (i.e. BK v2.0.2 and lower):

**This is not required if playing a game version lower than v2.1.0. In that case, the total completion time is instead the sum of completion times of the individual levels, and retrying levels is not permitted.

Have a good sunday!