Rock Paper Scissors
Rock Paper Scissors pits you against a simple but effective AI opponent in a best-of-5 match. Each round, you choose Rock, Paper, or Scissors by clicking the corresponding emoji button. The AI also makes a choice, and the winner is determined by the classic rules: Rock beats Scissors, Scissors beats Paper, Paper beats Rock. The match continues until one player reaches 3 wins. Your career win/loss record is tracked across all sessions using localStorage, so you can see your overall performance over time. The AI uses a combination of random selection and pattern recognition: it tracks your previous choices and biases its selection toward moves that counter your most frequently chosen option.
The psychology of Rock Paper Scissors is surprisingly deep. Human players are statistically most likely to choose Rock on their first move (about 35% of players), so the AI begins with a slight bias toward Paper. After losing, humans tend to switch to the move that would have beaten the opponent's last move. The AI exploits this pattern by randomly mixing counter-strategies. While no AI can be truly unbeatable in Rock Paper Scissors (because random play is optimal), a pattern-aware AI can achieve a 55-60% win rate against non-random human players. The game interface uses clear emoji-based move displays with color-coded result indicators: green glow for a win, red glow for a loss, and yellow glow for a draw. The match results include a subtle animation sequence that reveals both moves simultaneously for dramatic effect.