However, in the chapter's main boss fight, they disappear until you win the battle. (playstationwire.com)
The cutscenes are brilliantly done as well, the animation quality is top notch, two scenes in particular with the third main boss are literally the best parts of the entire game. (nintendo.co.uk)
I think the turning point may have been after the first main boss. (NintendoWorldReport.com)