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.
They Changed It, Now It Sucks: The response from fans of the Drum Mania and Guitar Freaks franchises over Konami's choice of a gameplay style closer to its competitors instead of the tried and true formula used in its originators. Complaints also came from players too used to the new industry standard of a slanted highway for notes and a colored bar spanning across the lanes to indicate pedal kicks. The end result is most people complained that they changed all the good stuff and left the bad stuff alone.
They Copied It, So It Sucks: Despite Konami having originated the very concepts that Guitar Hero and Rock Band have expanded on, people still think the developers tried too hard to copy the "style" of gameplay used by its American-produced counterparts, and some would've been better off with games based more on its ancestors.