Boss Battles is a mode which opens up once you've finished the Subspace Emissary. In it you have to face off against a total of ten bosses.
There are five difficulty settings to choose from, and bosses come in random order (except for the last). Any damage you build up will be carried on into future fights, so use the hearts in the Rest Station wisely.
BoSs bAtTLeS aRe tEH l33T kK.
Shredder's seen better days.
Hey mac, got any flies?
You weren't there man, we had to eat hearts to survive.
Never give up!
3,029 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).