Janken is a game found in Alex Kidd in Miracle World. Although it is essentially a side-game, it is necessary to win at Janken in order to progress through the game.
Janken is the same as the real life game of paper-scissors-rock. Each round, the player (and opponent) make their choice of the three options. Both participants then display their selection via their hand. The result is decided as follows:
- Paper defeats Rock
- Scissors defeats Paper
- Rock defeats Scissors
In the event that both participants choose the same, the round is a draw. The player must win 2 out of 3 rounds to progress. Failure to do so results in the player losing a life and being turned to stone.
In a complete game of Alex Kidd in Miracle World, Janken is played seven times - twice each against Janken's henchmen and once against Janken the Great himself.