How to Play BOO?

BOO WHO? Rules

🎯 Objective

End the game with the lowest total score after 5 rounds. The player with the fewest points at the end wins. Easy, right? 😉

👥 Players

Recommended: 2–4 players per deck. Add a second deck for more players!

🃏 What’s in the Box?

Total Cards: 59 + 2 Blank Replacements

🔢 Number Cards (42 total)

  • Zero (x2 cards)
  • 1–10 (x4 cards each)
  • Special Abilities:
    • 7 & 8: Peek at another player’s card
    • 9 & 10: Peek at one of your own cards
    • *Only activates when drawn and played*

💣 Special Number Cards (5 total)

  • +15 (x3): Adds to your score — not good!
  • –5 (x2): Subtracts from your score — great!

🎭 Action Cards (12 total)

Worth 10 points if left face-down and unplayed

  • Sneak Peek: Look at one card from each player (including yourself)
  • Reset: Choose a player to replace all their cards (discard cards into the deck)
  • Hand Switch: Swap one of your cards with another player’s (no peeking)
  • Lucky Trade: Swap one of your cards with one from the deck (discard card into the deck)
  • Force a Draw: Choose a player to draw an extra card
  • Let It Go: Discard (play) any one of your cards
  • BOO WHO?: Peek at all cards from one player

🕳 Blank Cards (x2)

Use as replacements if a card goes missing. Just label it and play on!

⚙️ Setup

  1. Each player places 4 cards face-down in front of them. No peeking!
  2. Flip 1 card face-up in the center.
  3. Put the rest of the deck beside it.

🔁 How the Game Works (5 Rounds)

A round ends when someone says “BOO!” on their turn or when a player finishes all their cards. Everyone else gets one final turn, then all cards are revealed and scores are calculated.

Round Peek Rules:

Round What You Can Do
Round 1 Look at 2 of your cards (right side)
Round 2 Look at 1 of your cards (right side)
Round 3 No peeking at all
Round 4 Silent round (look at 2 cards, no talking)
Round 5 Look at 2 cards, and scores are doubled!

▶️ On Your Turn

Choose ONE of the following:

  • Trade: Swap the last center card with one of your face-down cards
  • Draw & Play: Draw a card from the deck and play it immediately
  • Draw & Switch: Draw a card, swap it with one of your cards, then play the replaced card
  • Match: If the face-up card matches one of yours, call “Match!” and play the matching card

⚠️ Special Rules

  • Only drawn & played action cards activate their effects
  • Face-down action cards are worth 10 points
  • Abilities of cards 7, 8, 9 and 10 are only active if drawn and played
  • If you call “BOO!” and have the lowest score that round, you score 0! If not, you get the score of your cards.
  • If you make a mistake (like a bad match), draw 1 extra card and add it face-down on the left of your cards.

🧲 Scoring

  • BOO! caller with lowest score: 0 points
  • Everyone else: Add up card values (double in Round 5)

🏆 Winning

After 5 rounds, the player with the lowest total score is the game winner!

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