Kings and pigs - pixel platformer

There lived a king. Everything would be fine, but Pinglin, the king of pigs, lived nearby. One day he wanted to take over him country. Our king has decided to negotiate in order to save thousands of civilians. But the problem was that Pinglin had forgotten to tell his soldiers that they were having a guest. And the pigs open fire on the hero. Your task is to go through all the rooms that lead to the main one!