With the new route there's no need to go to the room that supplies you with the locker code on the computer which saves a bunch of time. The code is RNG and after testing it with another runner and watching YouTube playthroughs we came up with 8 codes so far but I think there's 10 total. I'll go ahead and post them below for any future runners interested.

9842 6357 7984 3579 8421 4216 5798 1635 2163

This is great! I'll have to give this a shot when I learn the new route you found! Glad to see others running this game!

No problem :D Rules have been updated recently. • All runs must be visibly reset before a run. [effective as of March 2022].

So it's RNG which code is selected, but is always one of the 10 or so set codes?

Correct. It's basically a lottery. I always try to get it first or 2nd try. Fun times (: