Bat's Mod -

: It offers "1.7 Animations" for players who prefer the movement and combat feel of older versions of Minecraft. 2. "Bat" Files for Game Modding

BatMod is a specialized Minecraft client designed to improve game performance and provide customizable visual enhancements. Bat's Mod

There are several specific mods that add or change bats as creatures: Minecraft Origins Mod - The Bat Origin! : It offers "1

: Inside the game, you open the console and type bat [filename] to trigger all the commands in that text file immediately. Bat's Mod