(PATCHED) Deltarune Chapter 2 - Infinite money/stats farming exploit
I mentioned this exploit a few times in the previous videos comment sections, but here it is how it actually works:
When encountering a group of at least two Darkners, while with Noelle, by sparing AT LEAST one enemy, then freezing all other, it's possible to meet both requirements of "getting stronger" (which, by the way, ALSO includes Susie & Ralsei, even if they are off screen), while also making the enemies respawn again, allowing for potentially infinite money and damage/magic stats farming.