World 4 plunges you into an icy, frozen landscape, introducing slippery ice physics, new enemies like Phantos, and the challenge of navigating treacherous frozen caverns. The slippery surfaces will test your control and precision, making careful movement paramount. You'll also encounter enemies that are more resilient or require specific strategies to defeat. This world often features vertical shafts and hidden passages, so exploration is key. Be mindful of falling icicles and other environmental hazards unique to this frigid environment. Character choice becomes even more critical here, as certain abilities can significantly ease navigation.
