New screenshots from the game show Luigi in a range of awkward poses typical for Mario's anxious younger brother.

Luigi has featured as an unlockable character in all three previous Smash Bros. titles, including the series' last outing Super Smash Bros. Brawl.

A fan petition is also asking Nintendo to include executive Reggie Fils-Aime .

Super Smash Bros. for Wii U and Super Smash Bros. for 3DS are expected to launch in 2014. There will be no cross-platform play between the two.

Luigi joins previously announced characters Pikmin & Olimar, Villager, Mario, Donkey Kong, Mega Man, Wii Fit Trainer, Link, Samus, Kirby, Fox, Pikachu, Bowser, and Pit.

For formation on the game, .