This is essentially gore.
Scar doesn't give a shit about the potentially toxic gases spraying him in the face.
This dude keeps singing. He's like, "Toxic gases? HAKUNA MATATA, FOOL!"
The hyenas like to dive into a pool of their prey's skeletal remains, and wear their skulls as hats... and they laugh about it.
Now keep in mind, in this universe of The Lion King, ALL THE ANIMALS TALK AND HAVE PERSONALITIES. Just think about that as you see that pile of bones.