After defeating the Frost Walrus (an easy task) you will notice that you can clime the left wall all the way up. Do so, Dash Jump or Double Jump to the right. use the Lightining Web or Double Jump to reach the cliff. Continue right, picking up Large energy tanks and one extra life, untill you get to the other side of the cliff. When your coming down the cliff do not jump out to the right, hug the the right wall using your Air Dash and Wall Skid. (You attempt to hang on the wall but slide down it slowly.) You will find a second life, pick it up using the appering and dissappering ledges. Escape and repeat until you have full lives (9).