Boss: Ridley (looks Like A Dragon):

Their are 2 phases to defeating Ridly. Once you have returned all of the chozo artifacts, you will come across Ridly again. To defeat him, wait till it opens its mouth. Then lock onto it and fire (Use the red beam). Sometimes he will fly around, but just wait until he tries to attack you again. Once you get its life down about half way, it will start to fly around a lot. When Ridly swoops down near you, dodge the bombs Ridly drops. Then once it stops flying start attacking its mouth again. Phase 2: Once you get Ridly's life down about 3/4s, its wings will burn up. Now Ridly will start to charge at you. Keep moving out of the way until Ridly charges up a beam. Now when it is charging up a beam attack it with your red beam. Then it will be stunned, now attack its belly. Keep repeating this until Ridly falls off the platform. When you defeat him, go into the light and you will be able to go into impact crater.