I'm reasonably sure I've previously seen code somewhere that scales a SKPhysicsBody, but google and the docs aren't helping, making me more confused than normal.
Is there a way to scale a physic's body in SpriteKit?
The docs, here, don't mention anything about it: https://developer.apple.com/reference/spritekit/skphysicsbody
If you assign a physics body to a sprite and scale that sprite, the physics body will scale with it.