There isn't a formal guide, but I suppose we should make one now that there are people running this (I would love to run this if I can ever get some free time), and it would be a good place to put my research notes together from when I TASed it.

The initial pattern of the wisps in the sword cave can be manipulated if you do the same input from power on and path to the cave since the RNG starts from zero. The level grinding requires practice to get used to the enemy movement and how to avoid being in the front of an enemy when attacking them.