This level starts you off in a giant ant farm-like environment. You'll encounter large ants (Ant Troopers) and spiders. The main challenge here is dealing with the sheer size of the environment and the enemies. There are many small tunnels and pathways to explore. Keep an eye out for hidden blocks, as they often contain Super Mushrooms or Superball Flowers. The Superball Flower is particularly useful here for dealing with the Ant Troopers from a safe distance. There's a section where you'll climb up a giant string, requiring precise jumps to avoid falling. Don't rush, take your time with each jump.
Tip: Some blocks that look like regular background elements can actually be broken or contain items. Experiment by jumping into suspicious-looking areas.