Franken-Chopper
The Franken-Chopper is a Sprint animation effect that makes it look like you are riding a motorcycle instead of running. When you jump, you will pop a wheelie and then hop up. If you are standing still and then turn in place it will look like you are walking the bike through a turn.
Note that this is a Mundane sprint animation and so is restricted from some area. It cannot be used inside building or dungeons and will disappear if you cross through water. When this is set for your active sprint and you try to activate it in a forbidden area you will instead use the standard Sprinting animation. If you are currently using the Franken-Chopper animation and enter a forbidden area you will drop out of sprint and resume normal running.
While active, you will also have the Franken-Chopper (Status effect) buff in addition to the normal Sprinting buff icon.