How to Play
Master the basics, learn advanced tactics, and become a true Janken strategist
Basic Rules of Rock Paper Scissors
Rock Paper Scissors (Janken) is a simple hand game played between two players. Each player simultaneously chooses one of three options:
- Rock 🪨 (a closed fist)
- Paper 📄 (an open hand)
- Scissors ✂️ (index and middle fingers extended)
The winner is determined by these rules:
🪨 > ✂️
Rock crushes Scissors
✂️ > 📄
Scissors cut Paper
📄 > 🪨
Paper covers Rock
If both players choose the same shape, the round is a draw and is replayed. Matches continue until one player wins 3 rounds.
How the Janken Pro League Works
When you enter the arena:
- 1.You'll be matched against an opponent powered by S.A.D.I.
- 2.Each round, your digital coach will recommend strategies based on game context
- 3.Choose a strategy carefully — each choice affects your probability of winning
- 4.The round resolves instantly and the winner is revealed
- 5.First player to win 3 rounds wins the match!
Understanding the Strategy System
Unlike traditional Rock Paper Scissors, the Janken Pro League uses a context-aware strategy system. Your digital coach analyzes:
📊 Opponent Patterns
What moves they tend to use in different situations
🎯 Game Momentum
Who's winning, losing, or on a streak
🧠 Psychology
How players respond to pressure and defeat
⚡ Round Position
Opening moves vs. closing moves require different tactics
Each strategy recommendation comes with a probability bonus if executed correctly, giving skilled players an edge over random play.
Strategy Categories
Strategies are categorized by their tactical approach:
🛡️ Defensive Strategies
Conservative plays that minimize risk. Best when protecting a lead.
⚔️ Attack Strategies
Aggressive plays that take calculated risks. Best when behind or breaking patterns.
🎲 Wildcard Strategies
Unpredictable moves. Use these to confuse opponents and set up future wins.
Advanced Tips for Winning
Though Janken has an element of chance, strategic play significantly improves your odds:
- →Trust your coach: S.A.D.I. recommendations are based on real data
- →Adapt to momentum: Aggressive strategies when behind, defensive when ahead
- →Break patterns: Don't become predictable — mix your strategy types
- →Stay calm under pressure: Emotional throws lead to exploitable patterns
Ready to Begin?
Now that you know the rules, it's time to step into the arena and test your skills.
Enter the ArenaLearn more: