These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
That One Boss: Shizuka (made worse by the fact that she is your first opponent in 2). She is the only one in both games who can attack twice during her turn and the most likely to counter if your slap misses.