I have a bit mixed feelings about the game. On the 1 hand I found the first 8 worlds far to easy with the exception of some levels. The first 3 worlds of the extra levels were about the right difficulty and the last few worlds and a bit on the hard side. But here are where some of the personal reasons come in. But also some levels I would have preferred a different camera location and I wish you could control the game with the old fashion control pad and not only the new circle pad controls.
On these levels I really noticed the 3DS doesn't feel right in my hand. My left hand / thumb get a little numb since these levels require more speed in the movement. Or maybe it also has something to do of the location of the circle pad control. And on the 3DS on the back at the bottom are 2 small pins where I keep
my little finger. Since those levels are more tense I start holding the 3DS harder which starts to give me an annoying feeling in my little fingers.
All in all it was a nice game to play, just think it would have been more enjoyable with a different 3DS layout. Do want to give the game 4 stars since the game can't be held responsible for 3DS conflicts that I have.