The Kirby franchise has always been something of a petri dish for Nintendo. While its other franchises remain more-or-less the same with each new entry, the company hasn't been afraid to experiment with the pink puff. Games like Kirby's Tilt 'n' Tumble and Kirby's Canvas Curse gave players new ways to control him, while Kirby's Dream Course and Kirby's Air Ride introduced the character to new and unfamiliar genres.
Perhaps the most successful of these experimentations was Kirby's Epic Yarn, the fanciful platformer for the Wii, that eschewed the norms of the franchise in favor of something fresh and unique. The game was built around Kirby being a transforming piece of string. It was certainly different and deceptively easy, but ask anyone who wasn't a writer for Entertainment Weekly and they'd probably gush about how wonderful it was.
Kirby's Extra Epic Yarn brings all the magic of that Wii original to the Nintendo 3DS. But this isn't a straight port. The game includes new modes and features that sound good on paper, but don't always work in practice.