That's Kool I didn't know that about that game. Only reason I only of thought of this though was because of super smash bros.. In 3ds and the wii u version they both have differences in maps, music, and modes except in the roster which is the same on both versions . Originally the character Ice climbers was going to be in the game, but then Sakurai had stated that due to hard limitations of the 3ds that the character was unstable and had to be removed from both rosters even though it was stable on Wii U.