Shields of Sherbet Desert
From the Super Mario Wiki
The first part of the level features an area with two Burn covers, along with two Sherbet Ziggies and one Sherbet Supporter huddled together. It is partially surrounded by an elevated area, with Bounce covers and two Sherbet Smashers on either side.
The next part of the level introduces the Buckler enemy. It features two elevated areas opposite from each other, though a pipe from the lower area connects to only one of the elevated areas. Two Sherbet Ziggies are behind partial cover in the lower area, while the Sherbet Supporters and the Sherbet Buckler are on the opposite elevated area.