Hotheaded Lava Fields
From the Super Mario Wiki
The level starts off with a path leading onto some wavy ribbons above lava which have many beads falling on them. A green Item Balloon is found in the area. After this are two paths, a top path with a group of beads and a bottom path with a narrow gap and some breakable boxes containing beads. Next are more wavy ribbons along with some Fly Guys. The first Poochy Pup is found after the Fly Guys in a narrow alcove underneath some sponge blocks. After this are many grey falling and moving blocks. The second Poochy Pup is found on a platform near a down-moving block. After that is a few more breakable boxes and wavy ribbons. By jumping off the end of the ribbon, Poochy can jump onto a high platform which leads into an area with more sponge blocks. The third and final Poochy Pup is found on top of the sponge blocks. Finally, there are more wavy ribbons and Shy Guys right before the Goal Ring.