In Phase 6, there will be five bombs. 2 on the bottom, 2 in the the middle of the level, and 1on the top. Hit the 2 bombs on the bottom and then hit the middle left bomb. In a few seconds, a hammer will appear. Hit it to obtain it. You now have the gold hammer. The music will change and you are now able to hit enemies. You will have the hammer untill you die.