Proximity Mine

The Proximity Mine is a power-up in all platforms of Astro duel. When used, a circular mine with eight spokes will appear behind the ship. If an enemy nears the mine, It will detonate, completely destroying anything in its radius.

Against
When an opponent has placed a proximity mine, it will also detonate when fired upon. This can be used to destroy the ship that placed the mine, causing them to lose points.

With

Placing a proximity mine in the center of the map can exclude other players from grabbing powerups from red asteroids that spawn there.