Cross some rotating platforms and descend to fight a walrus. If the walrus spins a pellet on its head, attacks won’t work until it releases the pellet. Descend a little more and you’ll battle against a giant sphinx. The floor will move over a spike pit, while the sphinx will release some rocks. Be sure to also watch for rocks falling from the holes on the wall. Defeat the sphinx and a hen’s nest will release smaller chickens. Climb the ladder and wait for the platform to arrive to reach the next ladder. Climb some ladders and Eddie will give you a random item. Navigate the area a little and use the Rush Coil to reach a landing with a cracked wall. Use the Break Dash to break the wall and you’ll find a ruby. Cross a set of rotating platforms and battle a few species as you go along. Descend after a section of moving platforms and you’ll take on another giant sphinx. Defeat the sphinx and cross over some more rotating platforms. Spinning duck arms will spin and release their arms. Go through the cap doors to take on Uranus. Uranus will shake the turf before throwing a square rock from below. Sometimes, a wall of square rocks will form, trying to crush you in. Use the Break Dash to inflict more damage on the boss. Defeat this boss and you’ll receive the Deep Digger ability.
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https://www.youtube.com/watch?v=_X-eGvfoQU0