Super Smash Bros for Wii U

Smash Bros. lead designer Masahiro Sakurai believes gamers don't fully understand how much time and effort is invested into a project like Nintendo's iconic fighting game series.

"The players don't know about how hard we work. That's not a problem because that's the case for any product, but it's important to remember that you can't take anything for granted," Sakurai said in his latest

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.

Earlier this week, Nintendo confirmed Luigi as a playable character for the game. He joins previously announced characters Pikmin & Olimar, Villager, Mario, Donkey Kong, Mega Man, Wii Fit Trainer, Link, Samus, Kirby, Fox, Pikachu, Bowser, and Pit