An SFX volume control should be added along with sounds so that some people can play a soundless lioden but others like me can play lioden with the sounds.

Here are some sounds that I think should be added:

Lion Roar
21:27 to 21:29

This would be played whenever you click on Roar in the battle screen or Manly Roar when claiming a lioness.

If the lioness does not like you for some reason, then this sound should be played:

Lioness defensive roar
15:12 to 15:14

With the frolicking with a lion cub this sound should be played:

Lion cub playing
5:02 to 5:06

With the lost cheetah cub this sound should be played:

Cheetah cub chirp

An almost meow like sound should play when you are breeding since the lioness is the one that is very noisy during mating.

Lioness meow during mating
41:37 to 41:47

Basically for the battles and events there should be a sound matching every one of them such as hissing if a snake attacks you, mooing if a buffalo attacks you, roaring if another lion attacks you, etc.