Let the cream cheese soften in your mixing bowl. Add the garlic powder and Worcestershire sauce to the bowl of cream cheese. Beat with your hand mixer until smooth and creamy. Rinse the chipped beef, if desired. It's too salty for me. Cut the chipped beef into tiny pieces, chop the green onions, and grate the cheese. Combine everything together, add the black pepper. Mix until smooth. Place the mixture into a bowl and cover with some plastic wrap and place in the refrigerator for two hours. After two hours mold the mixture into a ball. Roll the cheese ball in some chopped green onions and chipped beef. Serve the chipped beef cheese ball with crackers or celery. Enjoy.