This mod renders any living entity as a 2D sprite in the world. The feature is inspired by "MineCraft 3D Shareware v1.34", Mojang's 2019 April Fools' joke, as entities are rendered the same way there.
You are allowed to use this mod in any modpack, it would be cool if you'd let me know if you do so.
Come join me on Discord! https://discord.gg/kgZUAxK