Comments

Most of the swaps are the same as Americium's original Sprunki Swapped project, so I'm assuming that you're using the same logic they applies there.
Raddy and Durple might've been swapped because they both have horns.
Simon and Tunner might had been swapped because of the Sinner ship
brud and Sky might've swapped because uhhh IDK

yep :>

Sprunki - Fate Swap