Rock, paper, scissors (Oẳn tù tì in Vietnamese) as a big social tournament: brackets of up to 64, best-of-3 duels with a fair simultaneous reveal, and a Spot the Difference race on the side.
✊ ✋ ✌️ Tournament
🔍 Spot the Difference
📱 Online cup
🎨 Practice
Scene
Differences
How to play
Everyone in the cup gets a seat in a bracket of 8, 16, 32 or 64. Up to 12 people play live; bots fill the other seats.
Each duel is best of 1, 3 or 5. When the throw clock runs, tap Rock, Paper or Scissors (or press R, P, S). Ties are thrown again.
Fair reveal: your hand is locked in as a secret code first and only shown once both hands are in. Every device checks every throw, so nobody can peek or change their mind.
Win and you move on. Lose and you watch the other duels live, cheer and send taunts until a champion is crowned.
Variants: Duck & Zap adds two hands (Duck pecks paper and splashes Zap, Zap melts scissors and blasts rock). Double Hands: throw with both fists, see both pairs, then keep one.
Spot the Difference: tap what changed between the two pictures (a colour, a missing or extra thing, something moved, turned or resized). Wrong taps add 4 seconds.
Cup settings
Scan the code with your phone camera.
Throw your hands from your phone.
Watch the bracket and the duels on the big screen!