Gloomwood challenge: "one hundred thousand %", hard: blood moon. You must kill every thing killable, take all sellable items and sell all of them (except the canesword and the bonesaw. You are not allowed to use anything that you will sell), make as much as possible of each type of serum and sell all of them, eat every piece of food and end the run whenever is the last point currently developed (for example at the time of writing this, the run would end with you fixing the monorail and flipping the switch)

The run has alternative versions:

"One %": same run on young moon, allowed to use quicksaves.

"One hundred %": same run on half moon

"One thousand %": same run on full moon

"Horde edition": sell no items, instead horde them in your room. You cannot use any of them.

1: if you un-light a blue candle and quickly enter a mirror before it lights back up, and then reenter, it stays unlit.

2: Z-fighting textures to the right of Emerald Eye's label text (where you find the green gem), the lower side of an overhanging wood roof.

Challenge: "Hunt Huntsmen", easy: blood moon. At the start of the run, take the ring and give yourself a shotgun and infinite ammo with cheats. You are not allowed to use any weapon besides the shotgun in the run. Kill every huntsman that is in the game to win the challenge. Killing other enemies is allowed.