The game could use some overall polish; footsteps did not match regarding audio and animation, aiming was a bit off from where the crosshair is(especially when aiming at flies), some turning animations (unless this is intended), some dialogue triggering multiple times, some small bugs(got stuck inside an object while grappling and my grapple tongue became HUGE at one point).
These are minor things, as it otherwise works well as a 3D platformer. Like the frog tongue grapple hook idea.
Well done.