This add-on has been upgraded.

https://www.curseforge.com/minecraft-bedrock/addons/usagi-addon-ii-for-bedrock-edition/files

Do you want a cute companion for your adventure? With this add-on, you can do what you want.
This add-on allows you to add original MOB that can be tamed.

Caution: If you want to use this pack, don't forget to turn on the "Experiments" buttons.
"Holiday Creator Features", "Creation of Custom Biomes" and "Additional Modding Capabilities".

Usagi Addon Trailer(YouTube Video)
https://www.youtube.com/watch?v=W3dNQ2hAv_g

Usagi Addon Image

Original MOB:Usagi
This original MOB occasionally spawns in plains, deserts and flower forests. This MOB can be tamed with emerald carrots. When you tame, the MOB will follow you in a "MEIDO" costume. It will fly when you tame it.
If a monster is nearby, it will attack automatically. Attacks the MOB that the player attacked and the MOB that attacked the player.

Usagi's health is 50. When tamed, the Usagi's health will be 20000. Tamed Usagi can be recovered with carrots and Emerald carrots. The amount of recovery of Usagi's health is 100 for carrots and 5000 for emerald carrots.

This original MOB cannot be bred.
And you can also name it using a name tag.

Original MOB：Usagi

New item
Emerald carrot: Emerald carrots can be crafted from one emerald and one carrot.

craft

Usagi Addon for Bedrock Edition