You want a polished, cinematic 3D experience. (Go play the real Ninja Storm 4 on PC/Console via Steam Deck or PS Remote Play).
This is where the MUGEN engine shines. Unlike the official Storm games, which are 3D arena fighters allowing you to dash around an opponent, MUGEN is inherently a 2D fighter (think Street Fighter or Tekken ). This change forces you to play differently. naruto shippuden ultimate ninja storm 4 mugen apk