The Christmas game

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Across
  1. 2. A gullible person
  2. 4. Roblox and PUBG had a baby
  3. 7. Cyborg assassin
  4. 8. Self-importance
  5. 9. Mario rides in these
Down
  1. 1. Fucking nerds play these
  2. 3. The coolest SouthPark character
  3. 5. The coolest person in this room
  4. 6. Gives cancer