Marble Alien is the hypotetical name given to the mysterious and extremely large alien who only appears in the final scene of Men in Black, since it's real name is unknown. When the camera zooms out it is shown playing with some marbles, which are actually entire universes.
Not much is know about this alien, due to the fact that he has mere seconds of screen-time. The alien, which has a greenish gelatinous appearance and four digits on each hand, is seen playing with some of the marbles before packing them on a bag.
Powers and Stats
Name: Unknown real name, Is often refered as "Marble Alien," "Extra-Galactic Alien" or just "The Alien", but none of those names are official.
Origin: Men in Black
Classification: Giant alien
Powers and Abilities: Mostly unknown, Superhuman Physical Characteristics, Can throw universes like they were marbles
Speed: Massively FTL+ attack speed (Can throw universes at 51 Quintillion times the speed of light)
Striking Strength: Universal (Throws univeres around like they were marbles)
Durability: Universe Level (The crash between two universes doesn't seem to affect him at all)
Stamina: Extremelly high (Can lift entire universes and throw them like they were marbles)
Range: Universal (He is far bigger than the universe)
Standard Equipment: A bag full of universes
Intelligence: Unknown, but seems to be at least sentient. Smart enough to play with marbles and put them on a bag after the game ends
Weaknesses: Mostly unknown, due to his extreme lack of screen time.
Note: Proof that those marbles are universes: