Its Smash Bros. If you have a 3DS this is one of those required games haha. Casual or competitive, this game rocks all the boats, capsizes them then jumps to a new one and repeats it. I'm pretty casual and I main MegaMan, Palutena, Pit/Dark Pit, various Mii Fighters, Shulk, and Mario. I enjoy making Mii fighters the most and using the Customs as well. Creating fighters in fighting games is always a very fun and varied thing to do.
An instant classic updated with better graphics and importet to a handheld console... great gift for people who want to experience one of the best Zelda games of all tme.
If you are reading this and still haven't played this, please, stop reading, get the game, finish it, and comeback. Done? Okay, now you understand why this game is great and why this is the template 3D Zeldas still use.