Just played this for the first time! Looks and feels marvellous! One thing though: When pressing 'up' and 'fire-for-up' simultaneously nothing happens. This was also the case with Sam's Journey and some other titles. In practice I use an (Xbox) controller with Vice and a fire button to jump / go up. It happens often that both are pressed during play, but then jump does not register.
Also (and I don't know yet if there is a reason for it later on for some extra weapon), but could fire be simply pressed without having to press it again for slashing?
Other than that, this looks fantastic!