The game mechanics is going better than in the first part of a lot. This are the battles that are fast times get messy, easier to master. By itself, the level of difficulty in order, perhaps a little too easy. That can not be said of the optional boss, however.
Also, the game is extremely varied. Time you walk through worlds and flatten enemies, then you're flying rubber boat, not so my case per se, but a nice way after playing through a bit of the game to hold.