How can I defeat the lizard beast?

Hint 1 of 9:

Have you gotten past the beast yet?

Hint 2 of 9:

You must have gotten to the foundry first.

Hint 3 of 9:

Then go up the stairs.

Hint 4 of 9:

A cannon, and a beast... Hmmmm....

Hint 5 of 9:

Pull the ring to aim the cannon.

Hint 6 of 9:

Pick up a cannon ball, and a powder charge.