Once you’ve defeated a mob, you will then metamorphose into that creature and gain any movement-related powers of that creature. There’s an old expression that goes “you are what you eat.” The Morph Mod for Minecraft gives that old saying a slight tweak by giving you the ability to become whatever creature you defeat in battle. This particular mod for Minecraft gives your character the power to assume the form and abilities of any mob you manage to defeat in combat.