Yyoki game rules: scoring, time limits and items

1. Each difference awards one point to one player

In multiplayer, a player earns one point when the server accepts an unfound difference. A difference can be claimed only once in the room. If players click nearly simultaneously, the first answer processed and accepted by the server receives the point; the click time on each device alone does not decide the winner.

• One difference = one point
• Previously found differences cannot score again
• Found locations and scores are shared with the room

2. Ties use the earlier recorded last correct answer

Players rank by total score. When scores are equal, the earlier timestamp of each player’s last correct answer ranks first. For example, if two players have three points each, the player whose third answer was recorded earlier ranks ahead. Speed does not change the points awarded for an individual difference.

3. A wrong answer pauses input for one second without deducting points

Clicking an incorrect location does not reduce your score, but it prevents another click for one second. Clicking a difference already found by another player awards no extra point and checks the current found state. The full game adjusts small touch and mouse targets, then the server checks participation and remaining differences.

• Differences are registered as circular or rectangular areas
• In the full game, either picture accepts a click at a correct location
• The trial needs no login and runs in the browser; its judging and wrong-answer behavior are separate from the full game

4. Solo has no time limit; multiplayer uses one limit for the whole game

Solo mode is for one player and records completion time without a time limit. Multiplayer supports two to six players, and the host chooses three, six or nine minutes. This time applies to the whole game, not separately to each picture. Finding all differences across all pictures ends the game early. Multiplayer also ends when time runs out, even if differences remain.

5. Choose five, seven or nine pictures with mixed difficulty

The full game offers five, seven or nine pictures. One picture means a pair of images to compare. The default selection aims for one hard pair in a five-picture game, two in seven and three in nine. If there are not enough candidates of a difficulty, another difficulty fills the gap, so the actual mix can vary. Selecting one candidate pair from each image set reduces repetition within a game.

6. Items begin after 30 seconds and share cooldowns by category

Both help and disturbance items start with a 30-second wait. Using Scan then locks the help category for 30 seconds; using Finder locks it for 60 seconds. Rumble and Earthquake share a 30-second disturbance cooldown. Solo mode offers help items only. In multiplayer, item controls appear when the host enables item mode.

• Scan: shows a large circle around one remaining difference for three seconds
• Finder: shows a location hint for up to three seconds; you still need to click it to score
• Rumble: four yokai and dust obscure the center of both opponent pictures for three seconds
• Earthquake: briefly shakes the selected opponent’s game view

7. Room codes work while the room is waiting

To join using a code or link, the room must be waiting and have an available place. A password-protected room also requires its password. Once a game has started, sending the link again does not allow a new participant to join; wait for the next game. Disconnected participants are removed based on their last connection update, so check the room’s current state with the host after a connection problem.

8. Report behavior that differs from these rules

This guide was checked against Yyoki’s game implementation. If judging differs from the description or something goes wrong, use the contact page to share your device, browser, time of the incident, information identifying the room or picture, and where you clicked. You do not need to send account passwords or login credentials.