Feline cerebellar hypoplasia (CH) is a non-progressive, non-contagious neurological condition that results in walking and balance problems. A kitten is born with “CH” when her cerebellum, the part of the brain that controls fine motor skills and coordination, is underdeveloped at birth. This causes tremors when excited or scared, causes trouble walking, and they fall down a lot!
I'm not sure if this can occur in lions, but since this game is rather fictional, it would make a good addition to the game!

This would be a lethal mutation for lions, since this makes it difficult to walk around properly- they'd be too wobbly, and without proper physical therapy, it wouldn't get better.

There are three different levels of CH (thank you @Thor #146940 for the suggestion!)

Mild- A clutzy Lion. Has most control of nack legs, unless they get too excited.
Moderate- Can't run very well, but they can still hunt.
Severe- Can't walk at all

Keeping cubs born with this alive would be difficult, if they make it to the point where they are no longer nursing from their mothers. Because this disorder makes it hard to stay upright, this could lead to many different cub accidents that just include them continually bumping their heads on the ground, twisting limbs, etc.
(If there were any art changes at all with this, it would be at birth- the cub wouldn't be standing, their legs would be splayed out. Much like the newborn stage!)

Neither cubs or adolescents with CH would be able to train- obviously they can hardly stand properly without wobbling a whole bunch.

Same for when they grown up- males wouldn't be able to go on patrols, and females wouldn't be able to hunt. This is similiar to eyeless or clawless, but isn't visible, like the others.

The art could possibly change in both make and female if they even make it to adult/Adol stage:
For example, Adol male wouldn't be standing as tall, or not even standing at all. It would look like he'd have trouble balancing, so his limbs would be splayed. Same for Adol females, they'd struggle to balance in a pose like they are currently in.
(Thank you Eclipse#111089 for the suggestion :D)
The female's hind splayed out (since it is usually a laying pose) behind or to the side of her. Another idea for females would be to have the adult version in the usually pose of adols, but with an embarrassed or maybe confused face.

For adult males, they'd be sitting like this, or very closely like it:

(Image from ohmydogblog.com)

An alternate for that would be to have the male looking similar to this:

(image from https://www.animal-jewelry.com
(Dotoly is the name of the site))

That's all I have for now, if I have anymore ideas I'll edit them into this post! If you can think of anything to add, please comment on this forum! Thank you for reading!

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