The movement mechanic is interesting, but took a bit of getting used to. As a grappling mechanic, it could feel more 'weighty' and less floaty. I agree with the person below who commented that the boss could be destroyed quite quickly - I found it helpful to grapple away from the boss, and then aim the mouse in the general direction of where its projectiles were coming from off-screen. This destroyed both the projectiles and the boss quite quickly.