Yeah, both shooting and hitting the shuriken. I also felt throwing the shuriken was very slow, it didn't feel satisfying. I spent time lining up my shots which I don't think is how the game was meant to be played. Wall jumping also disoriented me a couple of times. Maybe use Ultrakill as inspiration? They have a mechanic where you can shoot coins you throw in the air that reminds me of your shuriken mechanics.