"Lengthy cutscenes" refers to long cinematic sequences in a video game where the player is not actively participating and watching a pre-recorded storyline or dialogue. Full definition
It's what the series is well known for, so be prepared for lengthy cutscenes, but at least this is one of the more focused games in the series. (newgamenetwork.com)
The story is presented in full - fledged and rather lengthy cutscenes that are played before the beginning of each level of gameplay. (nintendocastle.com)
They said that some of the game felt like filler and a lot of overly lengthy cutscenes made it feel more like the anime than a game. (coin-drop.com)