Piercing a hole and filling it

There are people who wait for enemies to leave holes and fill them.
I pierce holes and fill them.

• Top side: 9.1 Km (5.65 mi)
• Left side: 7.2 Km (4.74 mi)
• Right side: 13.3 Km (8.2 mi)
• Layers: 2
• MU: 8853

Completed at 00:17; one more little nocturnal step taken towards Platinum Illuminator (very close, now).