cartoon characters

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Across
  1. 3. a star fish
  2. 5. a dog that fights with a human
  3. 7. a little robot
  4. 8. a squirell underwater
Down
  1. 1. a annoying sponge
  2. 2. a alien from outerspace acting as a kid
  3. 4. a kids little platapus
  4. 6. a human fighting with a dog