Four Links Simulator

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I made that two pairs of balls can be operated with only one action (tap & slide & drop).

Method of operation:
By dragging and dropping in areas other than buttons and advertisements, we will simulate a chain by manipulating two pairs of balls.

Button function:
Return button: Back to previous.
Forward button: Proceed to the next.
Share button: You can post the previous chained start screen and the number of previous chains with SNS cooperation.
Restart button: You can start over from the beginning. At that time, the array is newly created.
Setting button: You can change the fall speed, volume, first hand restriction.

If there is a misspelling, if you would like to fix it please do contact me via Twitter or email.