Complex sentence: The Spider Ball allows Samus to climb most walls or ceilings, giving her freedom to explore both the surfaces and ceilings of caverns, and the Spring Ball gives Samus the ability to jump while curled up into a ball in the Morph Ball form.
Split into simpler sentences: The Spider Ball allows Samus to climb most walls or ceilings, giving her freedom to explore both the surfaces and ceilings of the caverns. The Spring Ball gives Samus the ability to jump while curled up into a ball in the Morph Ball form.