What’s the Word, Rebels?

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Across
  1. 1. love symbol
  2. 3. a Penguin’s best friend
  3. 4. Who are we?
  4. 5. The level you’ve achieved in RPF!
Down
  1. 1. You should log on to this!
  2. 2. Count as many as you can, but watch out for anvils!
  3. 3. Missions to complete on Club Penguin