It took this post and recent bio classes to realize that this line refers to the hydrophilic nature of water molecules, so the reason it is a question if he gets wet underwater, is because a water molecule can’t get wet, as it’s water, and even if he isn’t a water molecule, they’re attracted to all particles including other water molecules, so the water would definitely get him.

Would get this in a heartbeat if it had couch co-op. What a shame. My wife would love to play it with me and we only have one Switch and also wouldn’t buy the game twice anyway.