Let's Concentration. Use Sushi Card.
Concentration app.
Cards that are used in applications, 'Handy Menu -Sushi-'
The sushi came. Talk to.
Game Mode "friendly," "normally," "difficulty" "infinitely" and has been prepared.
In each level, one card storage time varies.
Friendly: 5 seconds
Normal: 3 seconds
Difficulty: 1 second
infinitely: 5 seconds (mode in which the game is over when you make a mistake).