Clash at Demonhead/Route 26

Description
Assuming you entered from the right, you will be greeted by a bird and two small hopping tree creatures. Clear them away and walk to the left. As you proceed, you will be attacked by a few more tree creatures. A set of slowly floating enemies will appear closer to the left exit. Remove the ones closer to the ground, and watch out for another tree creature to attack before you reach the left exit.