The blocks gradually shrink and leave the light at the end of the tunnel.

In 15% of cases stripes appear instead of blocks.
25% chance that the tunnel will be one and in the center of the screen, in other cases - several tunnels next to each other.
When there are several tunnels, they are offset. There is a 33% chance that they will be rotated by a random angle.

See variations please

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by neigal 17.02.22