Super Smash Bros 4 unveiled a new assist trophy for the game today that showed some familiar faces in the Pic of the Day.

Luigi's bizarro enemy, Waluigi, will make his second appearance in the series as an Assist Trophy.

"Once again, Waluigi's Assist Trophy joins the collection, which also means he's not a playable character," posted game developer Masahiro Sakurai on the Nintendo Miiverse. "Just because you try hard doesn't mean you'll make it into the battle." See the picture here.

In the snap shot, Waluigi is seen running away from Luigi as Mario is hanging off a cliff in the background.

Another Assist Trophy that was revealed on the Pic of the Day entries was Mother Brain from the Metroid series.

"Pic of the day. Housed within the Control Capsule! Protected by Rinkas! Eyeball armed with a Laser Brain Attack!! The massive Assist Trophy Mother Brain joins the collection!!" wrote Sakurai on the Nintendo Miiverse.

The character Mother Brain is one of Samus' greatest enemies from the Metroid franchise of games. She is also from the Captain N: The Game Master cartoon as well. Mother Brain appeared in the first and third games in the series, and later in a Game Boy Advance remake.

In the image Mother Brain is seen breaking out of a glass case, and her eye is shooting a laser beam up at Samus who is now being hurdled through the air. See the image here.

Assist Trophies help SSB characters in their battle. Upon receiving one, the character will summon a random Nintendo character that is not on the game's roster, and it will help them in the battle for a brief period of time.

The characters confirmed for the game so far are: Mario, Luigi, Link, Samus, Kirby, Fox, Pikachu, Bowser, Donkey Kong, Pit, Olimar, Toon Link, Princess Peach, Sonic the Hedgehog, MegaMan, Wii Fit Trainer, Rosalina, Zelda, the Villager, King Dedede, Lucario, Little Mac, and now Diddy Kong.

The game is expected out sometime this spring, however, Nintendo has not confirmed the date yet.