If It Rains It Pours Lava
From the Super Mario Wiki
The first part of the level features a small arena shaped like an infinity loop, with four Ziggies: three are behind partial cover, and one is behind full cover. There is also three Hoppers, all close to each other and to the left of Mario's group.
The second part of the level introduces Pyroclasts as stage hazards. It is a donut-shaped arena with four Hoppers; two are behind partial metal cover, while the other two are behind full cover.