N.E.P.T.R.

N.E.P.T.R. is a non-playable character in MultiVersus.

Origin
N.E.P.T.R. (short for Never-Ending Pie-Throwing Robot, also known simply as Neptr) is a pie-throwing robot who was created by Finn for the sole purpose of pranking Jake.

Role in MultiVersus
N.E.P.T.R. can be spawned by the Assistant item. He will follow the player who summoned him and throw pies at enemies.