I don't own the 3DS copy anymore but I did at one point beat it, to be clear.
The 3DS is kinda bizarre? The gameplay is as good as, if not better, than the WiiU version, again the first two zones are perfectly fun and enjoyable, but whereas WiiU Lost World gets boring overtime, the 3DS version just gets. Weirdly hard? The difficulty spike is insane, especially by the sixth zone.