Abysmal enemy design, with brain dead opponents that do nothing more interesting than rushing you or waiting around; lacking player's kit with moves that don't affect enemy state in any meaningful way locked behind a poorly thought out upgrade system. Adding to this the game also has pace-breaking rhythm mini games that consist of terrible tracks that repeat on loop most of the time.
If this wasn't enough the game is also buggy and broken, with audio and visual issues, enemies voice lines layering on top of each other, frequent crashing and freezes.

I'm convinced it's just an elaborate money laundering scheme at this point.