Electroplankton has its own stage in Super Smash Bros Brawl, it's proper name is Hanenbow.
You can unlock this by finishing Event 28 (Flower Blooms in the Echoes).
An artistic stage at heart, you won't be able to hear your own choice of music here. The Hanenbow are the pink things that move around the area, each time they hit a leaf a sound will be made.
Party like it's 1984.
You cannot harm me, for I am leaf.
Pacman used to be cool.
.. what are we doing here again?
You can sail the seven seas.
3,024 news items
A day with Pokemon GO Down Under
Splatoon's Last Ever Splatfest is Coming
And It's Sister vs. Sister
Nintendo President Satoru Iwata Passes Away at 55
Rest In Peace
Nintendo has detailed the return of its World Championship
Do you have what it takes?
Disney Infinity 3.0 Edition Officially Revealed
The Force is strong with this one...
Rumor: Disney Infinity 3.0 Leaked Early
Straight from a Galaxy Far, Far Away...
Mario Kart 8 DLC Pack 2...OH YEAAAAH!
Nintendo should do this more.
The Nintendo GameCube: An Interesting Legacy
Will The Wii U Have a Similar Fate?
Project Ukulele - Possible Hint at Characters
Could it be?
Wii's World is not officially affiliated with Nintendo! (but they wish we were).